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EMT Study Cards
Emergency Medical Technician Study Material
319
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Professional
07/10/2010

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Term
Abduction
Definition
Movement away from the body's midline.
Term
Adduction
Definition
Movement toward the body's midline.
Term
Afferent
Definition
Conducting toward a structure.
Term
Anterior
Definition
The front surface of the body.
Term
Anterior to
Definition
In front of.
Term
Caudad
Definition
Toward the tail.
Term
Cephalad
Definition
Toward the head.
Term
Circumduction
Definition
Circular movement of a part.
Term
Craniad
Definition
Toward the cranium.
Term
Deep
Definition
Situated remote from the surface.
Term
Distal
Definition
Situated away from the point of origin.
Term
Dorsal
Definition
Pertaining to the back surface of the body.
Term
Dorsiflexion
Definition
Bending backward.
Term
Efferent
Definition
Conducting away from a structure.
Term
Elavation
Definition
Raising a body part.
Term
Extension
Definition
Stretching, or moving jointed parts into or toward a straight condition.
Term
External
Definition
Situated outside.
Term
Flexion
Definition
Bending, or moving jointed parts closer together.
Term
Inferior
Definition
Situated below.
Term
Internal
Definition
Situated inside.
Term
Lateral
Definition
Situated away from the body's midline.
Term
Lateral rotation
Definition
Rotating outward away rfrom the body's midline.
Term
Left lateral recumbent
Definition
Lying horizontal on the left side.
Term
Mediad
Definition
Toward the midline of the body.
Term
Medial
Definition
Situated toward the body's midline.
Term
Midial rotation
Definition
Rotating inward toward the body's midline.
Term
Palmar
Definition
Concerning the inner surface of the hand.
Term
Perpheral
Definition
Away from the central structure.
Term
Plantar
Definition
Concerning the sole of the foot.
Term
Posterior
Definition
Pertaining to the back surface of the body.
Term
Posterior to
Definition
Situated behind.
Term
Pronation
Definition
Lying face downward or turning the hand so the palm faces downward or backward.
Term
Prone
Definition
Lying horizontal, face down and flat.
Term
Protraction
Definition
A pushing forward, as the mandible.
Term
Proximal
Definition
Situated nearest the point of origin.
Term
Recumbent
Definition
Lying horizontal, generally speaking.
Term
Retraction
Definition
A drawing back, as the tongue.
Term
Right lateral recumbent
Definition
Lying horizontal on the right side.
Term
Rotation
Definition
Turning around an axis.
Term
Superficial
Definition
Situated near the surface.
Term
Superior
Definition
Situated above.
Term
Supination
Definition
Lying face upward or turning the hand so the palm faces forward or upward.
Term
Supine
Definition
Lying horizontal, flat on the back and face up.
Term
Coronal or frontal plane
Definition
An imaginary plane that passes through the body from side to side and divides it into front and back sections.
Term
Midsagittal plane
Definition
An imaginary plane that passes through the body from front to back and divides it into right and left halves.
Term
Sagittal Plane
Definition
An imaginary plane parallel to the median plane. It passes through the body from front to back and divides the body into right and left sections.
Term
Transverse plane
Definition
An imaginary plane that passes throught the body and divides it into upper and lower sections.
Term
Abandonment
Definition
Leaving a patient after care has been initiated and before the patient has been transferred to someone with equal or greater medical training.
Term
ABCs
Definition
Airway, breathing, circulation.
Term
Abdominal quadrants
Definition
Four divisiona of the abdomen used to pinpoint the location of a pain or injury.
Term
RUQ
Definition
Right upper quadrant
Term
LUQ
Definition
Left upper quadrant
Term
RLQ
Definition
Right lower quadrant
Term
LLQ
Definition
Left lower quadrant
Term
Abortion
Definition
Spontaneous (miscarriage) or induced termination of pregnancy.
Term
Abrasion
Definition
A scratch or scrape.
Term
Abruptio placentae
Definition
A condition in which the placenta seperates from the uterine wall: a cause of prebirth bleeding.
Term
Absorbed poisions
Definition
Poisons that are taken into the body through unbroken skin.
Term
Acetabulum
Definition
The pelvic socket into which the ball at the proximal end of the femur fits to form the hip joint.
Term
Acquired Disease/Condition
Definition
A disease or condition that occurs after birth.
Term
Acromioclavicular joint
Definition
The joint where the acromion and the clavicle meet.
Term
Acromion process
Definition
The highest portion of the shoulder.
Term
Activated charcoal
Definition
A substance that absorbs many poisons and prevents them from being absorbed by the body.
Term
Active rewarming
Definition
Application of an external heat source to rewarm the body of a hypothermic patient.
Term
Acute myocardial infarction (AMI)
Definition
The condition in which a portion of the myocardium dies as a result of oxygen starvation; often called a heart attack by laypersons.
Term
Advance directive
Definition
A DNR order
Term
Afterbirth
Definition
The placenta, membranes of the amniotic sac, part of the umbilical cord, and some tissues from the lining of the uterus that are delivered after the birth of the baby.
Term
Air embolism
Definition
Gas bubble in the bloodstream. [The plural is air emboli. The more acute term is arterial gas embolism (AGE)]
Term
Airway
Definition
The passageway by wich air enters or leaves the body. The structures of the airway are the nose, mouth, pharynx, larynx, trachea, bronchi, and lungs.
Term
Allergen
Definition
Something that causes an allergic reaction.
Term
Allergic reaction
Definition
an exaggerated immune response.
Term
Alveoli
Definition
The microscopic sacs of the lungs where gas exchange with the bloodstream takes place.
Term
Amniotic
Definition
Thev"bag of waters" that surounds the developing fetus.
Term
Amputation
Definition
The surgical removal or traumatic severing of a body part, usually an extremity.
Term
Anaphylaxis
Definition
A severe or life-threatening allergic reaction in which the blood vessels dilate, causing a drop in blood pressure, and the tissues lining the respiratory system swell, interfering with airway. Also called anaphylactic shock.
Term
Anatomical position
Definition
The standard reference position for the body in the study of anatomy. In this position, the body is standing erect, facing the observer, with arms down at the sides and the palms of the hands forward.
Term
Anatomy
Definition
The study of body structure.
Term
Aneurysm
Definition
The dilation, or ballooning, of a weakened section of the wall of an artey.
Term
Angina pectoris
Definition
Pain in the chest, occurring when blood supply to the heart is reduced and a portion of the heart muscle is not receiving enough oxygen.
Term
Anterior
Definition
The front.
Term
Antidote
Definition
A substance that will neutralize the poison or its effects.
Term
Aorta
Definition
The largest artery in the body. It transports blood from the left ventricle to begin systemic circulation.
Term
Apnea
Definition
no breathing.
Term
Appendix
Definition
A small tube located near the junction of the small and large intestines in the right lower quadrant of the abdomen, the function of which is not well understood. Its inflammation, called appendicitis, is a common cause of abdominal pain.
Term
Arterial bleeding
Definition
Bleeding from an artery, which is characterized by bright red blood and as rapid, profuse, and difficult to control.
Term
Arteriole
Definition
The smallest kind of artery.
Term
Artery
Definition
Any blood vessel carrying blood away from the heart.
Term
Artificial ventilation
Definition
Forcing air or oxygen into the lungs when a patient has stopped breathing or has inadequate breathing. Also called positive pressure ventilation.
Term
Asystole
Definition
A condition in which the heart has ceased generating electrical impulses.
Term
Atria
Definition
The two upper chambers of the heart. There is a right atrium (which receives unoxygenated blood returning from the body) and a left atrium (which receives oxygenated blood returning from the lungs).
Term
Ausculation
Definition
Listening. A stethoscope is used to auscultate for characteristic sounds.
Term
Auto-injector
Definition
A syringe preloaded with medication that has a spring-loaded device which pushes the needle through the skin when the tip of the device is pressed firmly against the body.
Term
Automatic implanted cardiac defibrillator (AICD)
Definition
A device implanted under the skin that can detect a life-threatening cardiac dysrythmia and respond by delivering one or more shocks to correct the rhythm.
Term
Automatic transport ventilator (ATV)
Definition
A device that provides positive pressure ventilations. It includes settings designed to adjust ventilation rate and volume, and is portable and easily carried on an ambulance.
Term
Automaticity
Definition
The ability of the heart to generate and conduct electrical impulses on its own.
Term
Autonomic nervous system
Definition
The division of the peripheral nervous system that controls involuntary motor functions.
Term
AVPU
Definition
A memory aid for classifying a patient's level of responsiveness, or mental status. The letters stand for alert, verbal response, painful response, unresponsive.
Term
Avulsion
Definition
The tearing away or tearing off a piece or flap of skin or other soft tissue. This term also may be used for an eye pulled from its socket or a tooth dislodges from its socket.
Term
Bag-valve mask (BVM)
Definition
A handheld device with a face mask and self-refilling bag that can be squeezed to provide artificial ventilations to a patient. It can deliver air from the atmosphere or oxygen from a supplemental oxygen supply system.
Term
Bandage
Definition
Any material used to hold a dressing in place.
Term
Base Station
Definition
A two-way radio at a fixed site such as a hospital or dispatch center.
Term
Behavior
Definition
The manner in which a person acts.
Term
Behavioral emergency
Definition
When a patient's behavior is not typical for the situation; when the patient's behavior is unacceptable or intolerable to the patient, his family, or the sommunity; or when the patient may harm himself or others.
Term
Bilateral
Definition
On both sides.
Term
Blood pressure
Definition
The pressure caused by blood exerting force against the walla of blood vessels. Usually arterial blood pressure (the pressure in an artery) is measured.
Term
Blood pressure monitor
Definition
Machine that automatically inflates a blood pressure cuff and measures blood pressure.
Term
Blunt-force trauma
Definition
Injury caused by a blow that does not penetrate the skin or other body tissues.
Term
Body Mechanis
Definition
The proper use of the body to facilitate lifting and moving and prevent injury.
Term
Bones
Definition
Hard but flexible living structures that provide support for the body and protection to vital organs. Types of bones are long, short, flat, and irregular. The typical long bone has a cylindrical shaft and a rounded end or head, which is connected to the shaft by the neck.
Term
Brachial artery
Definition
Artery of the upper arm; the site of the pulse checked during infant CPR.
Term
Bradycardia
Definition
Slow pulse; any pulse rate below 60 beats per minute.
Term
Breech presentation
Definition
When the baby appears buttocks or both legs first during birth.
Term
Bronchi
Definition
Thd two large sets of branches that come off the trachea and enter the lungs. There are right and left bronchi. [Singular bronchus]
Term
Bronchioles
Definition
Smaller branches of the bronchi.
Term
Bronchoconstriction
Definition
Constriction, or blockage, of the bronchi that lead from the trachea to the lungs.
Term
Calcaneus
Definition
The heel bone.
Term
Capillary
Definition
A thin-walled, microscopic blood vessel where the oxygen/carbon dioxide and nutrient/waste exchange with the body's cells take place.
Term
Capnometry
Definition
The measurement of exhaled carbon dioxide. A graphic recording or display of capnometric measurement is called capnography.
Term
Cardiac compromise
Definition
A blanket term that refers to a heart problem with a rapid onset.
Term
Cardiac conduction system
Definition
A system of specialized muscle tissues which conduct electrical impulses that stimulate the heart to beat.
Term
Cardiac muscle
Definition
Specilized involuntary muscle found only in the heart.
Term
Cardiogenic shock
Definition
Shock, or lack of perfusion, brought on not by blood loss, but by inadequate pumping action of the heart. It is often the result of a heart attack or congestive heart failure.
Term
Cardiovascular system
Definition
The system made up of the heart (cardio) and the blood vessels (vascular); the circulatory system.
Term
Carina
Definition
The fork at the lower end of the trachea where the two mainstem bronchi branch.
Term
Carotid arteries
Definition
The large neck arteries, one on each side of the neck, that carry blood from the heart to the head.
Term
Carotid pulse
Definition
The pulse felt along the large carotid artery on either side of the neck.
Term
Carpals
Definition
The wrist bones.
Term
Cartilage
Definition
Tough tissue that covers the joint ends of bones and helps to form certain body parts such as the ear.
Term
Central IV catheter
Definition
A catheter surgically inserted for long-term delivery of medications or fluids into the central circulation.
Term
Central nervous system (CNS)
Definition
The brain and spinal cord.
Term
Central rewarming
Definition
Application of heat lateral chest, neck, armpits, and groin of a hypothermic patient.
Term
Cerebrospinal fluid (CSF)
Definition
The fluid that surrounds the brain and spinal cord.
Term
Cervix
Definition
The neck of the uterus at the entrance to the birth canal.
Term
Chief complaint
Definition
In emergency medicine, the reason EMS was called, usually in the patient's own words.
Term
Clavicle
Definition
The collarbone
Term
Closed extremity injury
Definition
An injury with no open pathway from the outside.
Term
Closed wound
Definition
An internal injury with no open pathway from the outside.
Term
Cold zone
Definition
Area where the incident command post and support functions are located.
Term
Colostomy
Definition
Similar to an ileostomy, a surgical opening in the wall of the abdomen with a bag in place to collect excretions from the digestive system.
Term
Command
Definition
The first on the scene to establish order and initiate the Incident Command System.
Term
Compensated shock
Definition
When the patient is developing shock but the body is still able to maintain perfusion.
Term
Concussion
Definition
Mild closed head injury without detectable damage to the brain. Complete recovery usually expected.
Term
Conduction
Definition
The transfer of heat from one material to another through direct contact.
Term
Confidentiality
Definition
The obligation not to reveal information obtained about a patient except to other health care professionals involved in the patient's care, or under subpoeno, or in a court of law, or when the patient has signed a release of confidentiality.
Term
Congenital disease/condition
Definition
A disease or condition that is present at birth.
Term
Congestive heart failure (CHF)
Definition
The failure of the heart to pump efficiently, leading to excessive blood or fluids in the lungs, the body, or both.
Term
Consent
Definition
Permission from the patient for care or other action by the EMT.
Term
Contamination
Definition
contact with or presence of a material (contaminant) that is present where it does not belong and that is somehow harmful to persons, animals, or the environment; the introduction of dangerous chemicals, disease, or infectious materials.
Term
Continuous positive airway pressure (CPAP)
Definition
A device that exerts constant pressure through a tube and mask worn by a patient to keep airway passages from collapsing at the end of a breath.
Term
Contraindications
Definition
Specific signs or circumstances under which it is not appropriate and may be harmful to administer a drug to a patient.
Term
Contusion
Definition
a bruise; in brain injuries, a bruised brain caused when the force of a blow to the head is great enough to rupture blood vessels.
Term
Convecion
Definition
Carrying away of the heat by currens of air or water or other gases or liquids.
Term
Coronary arteries
Definition
Blood vessels that supply the muscle of the heart (myocardium).
Term
Coronary artery disease (CAD)
Definition
Diseases that affect the arteries of the heart.
Term
Cranium
Definition
The bony structure making up the forehead, top, back, and upper sides of the skull.
Term
Crepitation
Definition
The grating sound or feeling of broken bones rubbing together. Also called Crepitus.
Term
Cricoid pressure
Definition
Pressure applied to the cricoid cartilage to suppress vomiting and bring vocal cords into view.
Term
Crime scene
Definition
The location where a crime has been comitted or any place that evidence relating to a crime may be found.
Term
Critical incident stress management (CISM)
Definition
A comprehensive system that includes education and resources to both prevent stress and to deal with stress appropriately when it occurs.
Term
Crowning
Definition
When part of the baby is visible through the vaginal opening.
Term
Crush injury
Definition
An injury caused when force is transmitted from the body's exterior to its internal structures. Bones can be broken; muscles, nerves, and tissues damaged; and internal organs ruptured, causing internal bleeding.
Term
Cyanosis
Definition
A blue or gray color resulting from lack of oxygen in the body.
Term
Danger zone
Definition
The area around the wreckage of a vehicle collision or other incident within which special safety precautions should be taken.
Term
DCAP-BTLS
Definition
A memory aid to remember deformities, contusions, abrasions, puncture/penetrations, burns, tenderness, lacerations, and swelling-symptoms of injury found by inspection or palpation during patient assessment.
Term
Dead space
Definition
Areas of the lungs outside the alveoli where gas exchange with the blood does not take place.
Term
Decompensated shock
Definition
Occurs when the body can no longer compensate for the low blood volume or lack of perfusion. Late signs such as decreasing blood pressure become evident.
Term
Decompression sickness
Definition
A condition resulting from nitrogen trapped in the body's tissues caused by coming up too quickly from a deep, prolonged dive. A symptom of decompression sickness is "the bends," or deep pain in the muscles and joints.
Term
Decontamination
Definition
A chemical and/or physical process that reduces or prevents the spread of contamination from persons or equipment; the removal of hazardous substances from employees and their equipment to the extent necessary to preclude foreseeable health effects.
Term
Delirium tremens (DTs)
Definition
A severe reaction that can be part of alcohol withdrawal, characterized by sweating, trembling, anxiety, and hallucinations. Severe alcohol withdrawal with the DTs can lead to death if untreated.
Term
Dermis
Definition
The inner (second) layer of skin, rich in blood vessels and nerves, found beneath the epidermis.
Term
Designated agent
Definition
An EMT or other person authorized by a Medical Director to give medications and provide emergency care. The transfer of such authorization to a designated agent is an extension of the Medical Director's license to practice medicine.
Term
Detailed physical exam
Definition
An assessment of the head, neck, chest, abdomen, pelvis, extremities, and posterior of the body to detect signs and symptoms of injury. It differs from the rapid trauma assessment only in that it also examination of the face, ears, eyes, nose, and mouth during the examination of the head; it may be done less rapidly; and it may be done en route to the hospital after earlier onscene assessments and interventions are completed.
Term
Diabetes Mellitus
Definition
Also called sugar diabetes or just diabetes, the condition brought about by decreased insulin production or the inability of the body cells to use insulin properly. The person with this condition is diabetic.
Term
Dialysis
Definition
The process of filtering the blood to remove toxic or unwanted wastes and fluids.
Term
Diaphragm
Definition
The muscular structure that divides the chest cavity from abdominal cavity. it is a major muscle or respiration.
Term
Diastolic blood pressure
Definition
The blood pressure remaining in the arteries when the left ventricle of the heart is relaxed and refilling.
Term
Digestive system
Definition
system by which food travels through the body and is digested, or broken down into absorbable forms.
Term
Dilate
Definition
Get larger.
Term
Dilution
Definition
Thinning down or weakening by mixing with something else. Ingested poison are sometimes diluted by drinking water or milk.
Term
Direct carry
Definition
A method of transferring a patient from bed to stretcher, during which two or more rescuers curl the patient to their chests, then reverse the process to lower the patient to the stretcher.
Term
Direct ground lift
Definition
A method of lifting and carrying a patient from ground level to a stretcher in which two or more rescuers kneel, curl the patient to their chests. stand, then reverse the process to lower the patient to the stretcher.
Term
Disaster plan
Definition
A predefined set of instructions for a community's emergency responders.
Term
Dislocation
Definition
The disruption or "coming apart" of a joint.
Term
Dissemination
Definition
Spreading
Term
Distal
Definition
Farther away from the torso.
Term
Distention
Definition
A condition of being stretched, inflated, or larger than normal.
Term
Do no resuscitate (DNR) order
Definition
A legal document, usually sighned by the patient and his physician, which states that the patient has a terminal illness and does not wish to prolong life through resuscitative efforts.
Term
Domestic terrorism
Definition
Terrorism directed against the government or population without foreign direction.
Term
Dorsal
Definition
Referring to the back of the body or the back of the hand or foot. This is a synonym for posterior.
Term
Dorsalis pedis artery
Definition
Artery supplying the foot, lateral to the large tendon of the big toe.
Term
Downers
Definition
Depressants, such as barbiturates, that depress the central nervous system. They are often used to bring on a more relaxed state of mind.
Term
Draw-sheet method
Definition
A method of transferring a patient from bed to stretcher by grasping and pulling the loosened bottom sheet of the bed.
Term
Dressing
Definition
Any material (preferably sterile) used to cover a wound that will help control bleeding and help prevent additional contamination.
Term
Drowning
Definition
The process of experiencing respiratory impairment from submersion/immersion in liquid, which may result in death, morbidity (illness or other adverse effects), or no morbidity.
Term
Duty to act
Definition
an obligation to provide care to a patient.
Term
Dyspnea
Definition
Shortness of breath; labored or difficult breathing.
Term
Dysrhythmia
Definition
A disturbance in heart rate and rhythm.
Term
Eclampsia
Definition
a severe complication of pregnancy that produces seizures and coma.
Term
Ectopic pregnancy
Definition
When implantation of the fertilized egg is not in the body of the uterus, occurring instead in the oviduct (fallopian tube), cervix, or abdominopelvic cavity.
Term
Edema
Definition
Swelling resulting from a buildup of fluid in the tissues.
Term
Embolism
Definition
Blockage of a vessel by a clot or foreign material brought to the site by the blood current.
Term
Endocrine system
Definition
System of glands that produce chemicals called hormones that help to regulate many body activities and functions.
Term
Endotracheal tube
Definition
A tube desogned to be inserted into the trachea. Oxygen, medication, or a suction catheter can be directed into the trachea through an endotracheal tube.
Term
Epidermis
Definition
The outer layer of skin.
Term
Epiglottis
Definition
A leaf-shaped structure that prevents food and foreign matter from entering the trachea.
Term
Epilepsy
Definition
A medical condition that causes seizures. With proper medication, many epileptic patients will no longer have seizures.
Term
Epinephrine
Definition
A hormone produced by the body. As a medication, it dilates respiratory passages and is used to relieve severe allergic reactions.
Term
Esophageal detector device (EDD)
Definition
A device that uses a bulb or syringe to attempt to withdraw air from an endotracheal tube to determine correct placement in the trachea (from which air can easily be withdrawn) or incorrect placement in the esophagus (in which the soft esophagus will collapse and prevent air from being withdrawn).
Term
Esophagus
Definition
The tube that leads from the pharynx to the stomach.
Term
Evaporation
Definition
The change from a liquid to gas. When the body perspires or gets wet, evaporation of the perspiration or other liquid into the air has a cooling effect on the body.
Term
Evisceration
Definition
An intestine or other internal organ protruding through a wound in the abdomen.
Term
Exhalation
Definition
A passive process in which the intercostal (rib) muscles and the diaphragm relax, causing the chest cavity to decrease in size and air to flow out of the lungs. Also called expiration.
Term
Exposure
Definition
The dose or concentration of an agent multiplied by the time, or duration.
Term
Expressed consent
Definition
Consent given by adults who are of legal age and mentally competent to make a rational decision in regard to their medical well-being.
Term
Extremity lift
Definition
A method of lifting and carrying a patient during which one rescuer slips hands under the patient's armpits and grasps the wrists, while another rescuer grasps the patient's knees.
Term
Feeding tube
Definition
A tube used to provide delivery of nutrients to the stomach. A nasogastric feeding tube is inserted through the nose adn into the stomach; a gastric feeding tube is surgically implanted through the abdominal wall and into the stomach.
Term
Femoral artery
Definition
The major artery supplying the thigh.
Term
Femur
Definition
The large bone of the thigh.
Term
Fetus
Definition
The baby as he develops in the womb.
Term
Fibula
Definition
The lateral and smaller bone of the lower leg.
Term
Flail chest
Definition
Fracture of two or more adjacent ribs in two or more places that allows for free movement of the fractured segment.
Term
Flowmeter
Definition
A valve that indicates the flow of oxygen in liter per minute.
Term
Flow-restricted, oxygen-powered ventilation device (FROPVD)
Definition
a device that uses oxygen under pressure to deliver artificial ventilation. Its trigger is placed so that the rescuer can operate it while still using both hands to maintain a seal on the face mask. It has automatic flow restriction to prevent overdelivery of oxygen to the patient.
Term
Focused history and physical exam
Definition
The step of patient assessment that follows the initial assessment.
Term
Fowler's position
Definition
A sitting position.
Term
Fracture
Definition
Any break in a bone.
Term
Full thickness burn
Definition
A burn in which all the layers of the skin are damaged. There are usually areas that are charred black or areas that are dry and white. Also called third-degree burn.
Term
Gag reflex
Definition
vomiting or retching that results when something is placed in the back of the pharynx. This is tied to the swallow reflex.
Term
Gallbladder
Definition
A sac on the underside of the liver that stores bile produced by the liver.
Term
General impression
Definition
Impression of the patient's condition that is formed on first approaching the patient, based on the patient's environment, chief complaint, and appearance.
Term
Glottic opening
Definition
The opening to the trachea.
Term
Glucose
Definition
A form of sugar, the body's basic source of energy.
Term
Good samaritan laws
Definition
A series of laws, varying in each state, designed to provide limited legal protection for citizens and some health care personnel when they are administering emergency care.
Term
Hallucinogens
Definition
Mind-affecting or mind-altering drugs that act on the central nervous system to produce excitement and distortion of perceptions.
Term
Hazardous material
Definition
Any substance or material in a form which poses an unreasonable risk to health, safety, and property when transported in commerce.
Term
Hazardous-material incident
Definition
The release of a harmful substance into the environment.
Term
Head-tilt, chin-lift maneuver
Definition
A means of correcting blockage of the airway by the tongue by tilting the head back and lifting the chin. It is used when no trauma, or injury, is suspected.
Term
Hematoma
Definition
A swelling caused by the collection of blood under the skin or in damaged tissues as a result of an injured or broken blood vessel; in a head injury, a collection of blood within the skull or brain.
Term
Hemorrhage
Definition
Bleeding, especially severe bleeding.
Term
Hemorrhagic shock
Definition
Shock resulting from blood loss.
Term
HIPPA
Definition
The Health Insurance Portability and Accountability Act, a federal law protecting the privacy of patient-specific health care information and providing the patient with control over how this information is used and distributed.
Term
Hives
Definition
Red, itchy, possibly raised blotches on the skin that often result from allergic reactions.
Term
Hot zone
Definition
Area immediately surrounding a hazmat incident; extends far enough to prevent adverse effects outside the zone.
Term
Humerus
Definition
The bone of the upper arm, between the shoulder and the elbow.
Term
Humidifier
Definition
A device connected to the flowmeter to add moisture to the dry oxygen coming from an oxygen cylinder.
Term
Hyperglycemia
Definition
High blood sugar.
Term
Hyperthermia
Definition
An increase in body temperature above normal, which is life-threatening in its extreme.
Term
Hypoglycemia
Definition
Low blood sugar.
Term
Hypoperfusion
Definition
Inability of the body to adequately circulate blood to the body's cells to supply them with oxygen and nutrients.
Term
Hypopharynx
Definition
The area directly above the opening of both the trachea and the esophagus.
Term
Hypothermia
Definition
Generalized cooling that reduces the body temperature below normal, which is life-threatening in its extreme.
Term
Hypovolemic shock
Definition
Shock resulting from blood or fluid loss.
Term
Hypoxia
Definition
An insufficiency of oxygen in the body's tissues.
Term
Ilium
Definition
The superior and widest portion of the pelvis.
Term
Implied consent
Definition
The consent it is presumes a patient or patient's parent or guardian would give if they could, such as for an unconscious patient or a parent who cannot be contacted when care is needed.
Term
Incident Command
Definition
The person who assumes overall direction of an incident.
Term
Incident Command System (ICS)
Definition
A subset of the National Incident Management System (NIMs).
Term
Index of suspicion
Definition
Awareness that there may be injuries.
Term
Indications
Definition
Specific signs or circumstances under which it is appropriate to administer a drug to a patient.
Term
Induced abortion
Definition
Expulsion of a fetus as a result of deliberate actions taken to stop pregnancy.
Term
Inferior
Definition
Away from the head; usually compared with another structure that is closer to the head (e.g., the lips are inferior to the nose).
Term
Ingested poisons
Definition
Poisons that are swallowed.
Term
Inhalation
Definition
An active process in which the intercostal (rib) muscles and the diaphragm contract, expanding the size of the chest cavity and causing air to flow into the lungs. Also called inspiration.
Term
Inhaled poisons
Definition
Poisons that are breathed in.
Term
Inhaler
Definition
A spray device with mouthpiece that contains an aerosol form of a medication that a patient can spray into his airway.
Term
Initial assessment
Definition
The first element in assessment of a patient; steps taken for the purpose of discovering and dealing with any life-threatening problems. The six parts of initial assessment are: forming a general impression, assessing mental status, assessing airway, assessing breathing, assessing circulation, and determining the priority of the patient for treatment and transport to the hospital. Also called primary assessment or primary survey.
Term
Injected poisons
Definition
Poisons that are inserted through the skin; for example, by needle, snake fangs, or insect stinger.
Term
Insulin
Definition
A hormone produced by the pancreas or taken as a medication by many diabetics.
Term
Interventions
Definition
Actions taken to correct a patient's problems.
Term
Intubation
Definition
Insertion of a tube.
Term
Involuntary muscle
Definition
muscle that responds automatically to brain signals but cannot be consciously controlled.
Term
Irreversible shock
Definition
When the body has lost the battle to maintain perfusion to vital organs. Even if adequate vital signs return, the patient may die days later due to organ failure.
Term
Ischium
Definition
The lower, posterior portions of the pelvis.
Term
Jaw-thrust maneuver
Definition
A means of correcting blockage of the airway by moving the jaw forward without tilting the head or neck. Used when trauma, or injury, is suspected to open the airway without causing further injury to the spinal cord.
Term
Joint
Definition
The point where two bones come together.
Term
Jugular vein distention (JVD)
Definition
Bulging of the neck veins.
Term
Labor
Definition
the three stages of the delivery of a baby that begin with the contractions of the uterus and end with the expulsion of the placenta.
Term
Laceration
Definition
A cut; in brain injuries, a cut to the brain.
Term
Large intestine
Definition
The muscular tube that removes water from waste products received from the small intestine and removes anything not absorbed by the body toward excretion from the body.
Term
Laryngoscope
Definition
An illuminating instrument that is inserted into the pharynx to permit visualization of the pharynx and larynx.
Term
Larynx
Definition
the voice box.
Term
Lateral
Definition
To the side, away from the midline of the body.
Term
Left ventricular assist device (LVAD)
Definition
a battery-powered mechanical pump implanted in the body to assist a failing left ventricle in pumping blood to the body.
Term
Liability
Definition
Being held legally responsible.
Term
Ligament
Definition
tissue that connects bone to bone.
Term
Limb presentation
Definition
When an infant's limb protrudes from the vagina before appearance of any other body part.
Term
Liver
Definition
The largest internal organ of the body, produces bile to assist in breakdown of fats and assists in the metabolism of various substances in the body.
Term
Local cooling
Definition
Cooling or freezing of particular (local) parts of the body.
Term
Lungs
Definition
The organs where exchange of atmospheric oxygen and waste carbon dioxide take place.
Term
Lungs
Definition
The organs where exchange of atmospheric oxygen and waste carbon dioxide take place.
Term
Mainstem bronchi
Definition
The two large sets of branches that come off the trachea and enter the lungs. There are right and left mainstem bronchi. Singular bronchus.
Term
Malar
Definition
The cheek bone, also called the zygomatic bone.
Term
Malleolus
Definition
Protrusion on the side of the ankle. The lateral malleolus, at the lower end of the fibula, is seen on the outer ankle; the medial malleolus, at the lower end of the tibia, is seen on the inner ankle.
Term
Mandible
Definition
The lower jaw bone.
Term
Manual traction
Definition
The process of applying tension to straighten and realign a fractured limb before splinting.
Term
Manubrium
Definition
The superior portion of the sternum.
Term
Maxillae
Definition
The two fused bones forming the upper jaw.
Term
Mechanism of injury
Definition
A force or forces that may have caused injury.
Term
Meconium staining
Definition
Amniotic fluid that is greenish or brownish-yellow rather than clear as a result of fetal defecation; an indication of possible maternal or fetal distress during labor.
Term
Medial
Definition
toward the midline of the body.
Term
Medical direction
Definition
Oversight of the patient-care aspects of an EMS system by the Medical Director. Off-line medical direction consists of standing orders issued by the Medical Director that allows EMTs to give certain medications or perform certain procedures without speaking to the Medical Director or another physician. On-line medical direction consists of orders from the on-duty physician given directly to an EMT in the field by radio or telephone.
Term
Medical Director
Definition
A physician who assumes ultimate responsibility for the patient care aspects of the EMS system.
Term
Medical patient
Definition
A patient suffering from one or more medical diseases or conditions.
Term
Mental status
Definition
Level of responsiveness.
Term
Metacarpals
Definition
The hand bones.
Term
Metatarsals
Definition
the foot bones.
Term
Mid-axillary line
Definition
A line drawn vertically from the middle of the armpit to the ankle.
Term
Mid-clavicular line
Definition
The line through the center of each clavicle.
Term
Midline
Definition
An imaginary line drawn down the center of the body, dividing it into right and left halves.
Term
Minute volume
Definition
The amount of air breathed in during each respiration multiplied by the number of breaths per minute.
Term
Miscarriage
Definition
spontaneous abortion.
Term
Mobile radio
Definition
A two-way radio that is used or affixed in a vehicle.
Term
Multiple birth
Definition
When more than one baby is born during a single delivery.
Term
Multiple-casualty incident (MCI)
Definition
an emergency involving multiple patients.
Term
Muscle
Definition
Tissue that can contract to allow movement of a body part.
Term
Musculoskeletal system
Definition
the system of bones and skeletal muscles that support and protect the body and permit movement.
Term
Narcotics
Definition
A class of drugs that affect the nervous system and change many normal body activities. Their legal use is for relief of pain. Illicit use is to produce an intense state of relaxation.
Term
Nasal bones
Definition
the bones that form the upper third, or bridge, of the nose.
Term
Nasal cannula
Definition
A device that delivers low concentrations of oxygen through two prongs that rest in the patient's nostrils.
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