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Test #3
Fluids, Cardiovascular, and Pulmonary
126
Pathology
Undergraduate 2
02/02/2012

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Term
The total water loss per day in an adult is approximately:
Definition
e. 2.8 liters
Term
Of the 60% of the body weight made up of water, about two thirds is:
Definition
b. intracellular fluid
Term
Sodium is responsible for:
Definition
b. ECF osmotic pressure
Term
A milliequivalent is a unit of:
Definition
c. chemical activity
Term
Which statement is true?
Definition
d. The positive and negative charges in blood plama must be equal to each other.
Term
Aldosterone control ECF volume by:
Definition
b. sodium reabsorption
d. water reabsorption
e. Both b and d are correct
Term
The release of ADH is NOT stimulated by:
Definition
b. hyponatremia
Term
Hydrostatic pressure
Definition
b. pressure of blood within capillaries
Term
Oncotic pressure
Definition
a. water-pulling effect of plasma proteins
Term
Laboratory studies of an adult reveal the following:
Plasma sodium= 110mEq/L
Plasma chloride=85mEq/L
Ect...
Definition
c. Hyponatremia
Term
An individual suffers from weakness, dizziness, irritability, and intestinal cramps. Lab studies reveal the following:
Plasma sodium=138 mEq/L
Plasma potassium=6.8 mEq/L
Etc...
Definition
c. Hypkalemia
Term
An acid is:
Definition
d. a substance/chemical that donates a hydrogen ion or a proton to the solution.
Term
Strong acids:
Definition
a. include phosphoric acid
b. contribute many H+ to the solution
e. are eliminated by renal tubules
Term
The blood pH is maintained near 7.4 by buffering systems. The sequence from the fastest acting to the slowest acting system is:
Definition
b. blood buffers, lungs, kidneys
Term
The pH of saliva is about 7 and the pH of gastric juice is about 2. How many times more concentrated is the hydrogen ion in gastric juice than in saliva?
Definition
e. 100,000
Term
Which would NOT shift the blood pH toward alkalosis?
Definition
c. bicarbonate ion secretion into urine
Term
As HCO3 shifts from the red blood cell to the blood plasma, it is expected that the plasma:
Definition
c. Cl- shifts into the red blood cell
Term
An elevated anion gap is associated with an accumulation of:
Definition
b. lactate anion.
Term
Oxygenated blood flows through the:
Definition
b. pulmonary veins
Term
The hepatic vein carries blood from the:
Definition
b. liver to the vena cava
Term
The position of the heart in the mediastinum is:
Definition
b. between the lungs, superior to the diaphragm
Term
The pericardial space is found between the:
Definition
c. visceral and parietal pericardium
Term
In the normal cardiac cycle, which of the folliwng occurs?
Definition
b. the two atria contract simultaneously, whereas the two ventricles relax.
c. The two ventricles contract simultaneously, whereas the two atria relax
Term
The QRS complex of the EKG represents:
Definition
b. ventricular depolarization
Term
Durial atrial systole, the:
Definition
a. atrioventricular valves are open
Term
Which does NOT significantly affect heart rate?
Definition
c. atrioventricular valves
Term
One cardiac cycle:
Definition
a. has a duaration that changes if the heart rate changes
b. usually requires less than 1 second to complete
e. Both a and b are correct
Term
Compared with arteries, veins:
Definition
a. have a larger diameter
Term
Normal systolic pressure within the left ventricle is in the range of:
Definition
a. 90 to 140 mm HG
Term
Backflow of blood from the arteries into the relaxing ventricles is prevented by the:
Definition
c. semilunar valves
Term
The Frank-Starling Law of the heart concerns the relationship between:
Definition
a. the length of the cardiac muscle fiber and the strength of contraction
Term
How does cardiac muscle differ from skeletal muscle?
Definition
b. arranged in branching networks
d. single-nucleated
e. more accessible to sodium and potassium ions
Term
Blood pressure is measured by the:
Definition
c. pressure exerted on the arteries by the blood.
Term
Identify the correct sequence of the positions of the pulmonary circulation.
Definition
b. 4,2,3,,1,5
Term
The normal heartbeat is initiated by the:
Definition
d. SA node
Term
If the sympathetic nervous system stimulation of the heart predominates over parasympathetic nervous system stimulation, the heart rate will:
Definition
a.increase its rate
Term
When blood exhibits a turbulent flow:
Definition
a. resistance increases
Term
Which factor might increase resistance to the flow of blood thru the blood vessels?
Definition
b. decreased numbers of capillaries
Term
Depolarization of cardiac muscle cells occurs because of:
Definition
b. the cell's interior becoming less negatively charged.
Term
Which statement is TRUE?
Definition
b. Lymph from the entire body, except for the upper right quadrant, eventually drains into the thoracic duct.
Term
Considering the sequence of structures through which air enters the pulmonary system, the pharynx is to the trachea as the:
Definition
d. respiratory bronchioles are to the alveolar ducts.
Term
The cilia of the bronchial wall:
Definition
d. propel mucus and trapped bacteria toward the oropharynx.
Term
As the terminal bronchioles are approached:
Definition
c. the epithelium becomes thinner
Term
The left bronchus:
Definition
d. is more angled than the right
Term
The respiratory unit consists of:
Definition
d. respiratory bronchioles and alveoli
Term
Alveoli are excellent gas exchange units because of:
Definition
a. their large surface area
b. a very thin epithelial layer
c. extensive vascularization
e. a,b,and c are correct
Term
Surfactant:
Definition
d. facilitates alveolar expansion during inspiration
Term
During expiration, which relationship is true?
Definition
c. As the lung volume decreases, the pressure increases.
Term
When the diaphragm and external intercostal contract:
Definition
a. the inthrathoracic volume increases
Term
Oxygen diffusion from the alveolus to the alveolar capillary occurs because:
Definition
a. The PAO2 is less in the capillary than in the arterial blood.
Term
A shift to the right in the oxyhemoglobin dissociation curve:
Definition
c. improves oxygen release and increases oxygen movement into the cells
Term
In which sequence does PaO2 progressively decrease?
Definition
d. atmospheric air, aortic blood, body tissues
Term
Most O2 is carried in the blood ______;most CO2 is carried in the blood ________.
Definition
b. bound to the hemoglobin; aoociated with bicarbonate/carbonic acid.
Term
Alveioli are well-suited for diffusion of respiratory gases because:
Definition
d. they contain surfactant, which helps prevent alveolar collapse.
Term
Which ordinarily brings about the greatest increase in the rate of respiration?
Definition
a. excess carbon dioxide
Term
The major muscles of inspiration are the:
Definition
a. diaphragm
c. external intercostals
e. Both a and c are correct
Term
Which of the follwing increases the repiratory rate?
Definition
a. increased PaCO2, decreased pH, decreased PaO2
Term
The dorsal respiratory group of nuerons:
Definition
a. sets the autonomic rhythm of respiration
Term
High altitudes may produce hypoxemia by:
Definition
c. decreased oxygen inspirations
Term
In ARDS, increased alveolocapillary membrane permeability is caused by:
Definition
a. platelet-activating factor (PAF)
b. oxygen-free radicals
c. tumor necrosis factor (TNF)
e. a,b,c correct
Term
Type II pneuomocytes damage causes:
Definition
d. decreased surfactant production
Term
Pulmonary edema may be caused by abnormal:
Definition
a. capillary hydrostatic pressure
b. capillary oncotic pressure
c. capillary permeability
e. a,b,c are correct
Term
In bronchial asthma:
Definition
a. bronchial muscles contract
Term
Asthma is precipitated by which of the following inflammitory mediators?
Definition
a. histamine
b. prostaglandins
c. leukotrienes
d. neutrophilic infiltration
Term
In emphysema:
Definition
e. none of the above
Term
Chronic bronchitis:
Definition
b. is caused by air pollutants
c. exhibits a productive cough
Term
Which is inconsistent with pneumonia?
Definition
b. involves only interstitial lung tissue
Term
Tuberculosis:
Definition
a. is caused by an aerobic bacillus
b. may affect other organs
d. antibiotics may be detected by a skin test
Term
Pulmonay emboli usually:
Definition
a.obstruct blood supply to lung parenchyma
b. originate from thrombi in the legs
d. occlude pulmonary artery branches
Term
Pulmonary hypertension:
Definition
a. occurs when left arterial pressure is elevated
c. shows right ventricular hypertrophy on an electrocardiogram
d. both a and c are correct
Term
Cor pulmonale:
Definition
a. occurs in response to long-standing pulmonary hypertenion.
b. is right heart failure
c. is manifested by altered tricuspid and pulmonic valve sounds
Term
A lung cancer is characterized by many anaplastic figures and the production of hormones is most likely:
Definition
b. small cell carcinoma
Term
The metastasis of lung squamous cell carcinoma is:
Definition
a. late
Term
A patient has deep and rapid respirations. Laboratory tests reveal decreased pH and bicarbonate. This patient has:
Definition
a. metabolic acidosis
Term
Which of the following statements reagrding aldosterone is TRUE?
Definition
a. It is a hormone that is secreted when sodium levels are depressed.
Term
Which of the following is NOT a clinical manifestation of hypokalemia?
Definition
d. Skeletal muscle contractility is increased.
Term
Which of the following statements is TRUE?
Definition
c. water moves freely across membranes
Term
Four Common Causes Edema
Definition
1. Increased hydrostatic pressure
2. Decreased plasma oncotic pressure
3. Increased capillary membrane permeability
4. Lymphatic obstruction
Term
Which of the following statements is TRUE?
Definition
a. Two thirds of the body's water is intracellular
Term
Which of the following is TRUE regarding hyponatremia?
Definition
d. It occurs when sodium drops below 135 mEq/L
Term
Which of the folliwing is TRUE regarding hyperchloremia?
Definition
d. Treat underlying disorder
Term
Which of the follwing is a TRUE statement regarding hyperkalemia?
Definition
b. It often occurs in acidosis
Term
Which of the following is NOT a cause of hypernatremia (high sodium)?
Definition
a. excessive free water intake
Term
Which drugs have a major effect in decreasing the strength of cardiac contraction?
Definition
a. Calcium channel blockers
Term
Which of the following is the source of nutrients for the blood vessels?
Definition
d. Vasa vasorum
Term
Which of the following peptides has the function of regulation of sodium and water balance?
Definition
d. Urodilantin
Term
Which of the following arteries travels in the coronary sulcus between the left atrium and the left ventricle?
Definition
b. Circumflex
Term
Which of the following is NOT a function of the pericardium?
Definition
d. lining that is continuous with the arteries, veins, and capillaries of the body
Term
Which of the following is the correct definition of preload?
Definition
d. pressure generated by the end-diastolic volume
Term
Which part of the heart is resposble for electrical impulse stimulation?
Definition
b. Sinus node
Term
Which two items are realted in the Frank-Starling law of the heart?
Definition
a. Resting sarcomere length to tension generation
Term
Which of the following hormones is released from the atrial tissue in response to increases in blood volume?
Definition
d. Atrial natriuretic peptide
Term
Which of the following actions does NOT cause a release of renin?
Definition
a. Increase in blood pressure at the renal artery
Term
Which of the following is TRUE regarding the thoracic duct?
Definition
b. Receives lymph from most of the body
Term
What are the two factors that determine cardiac output?
Definition
c. Heart rate and stroke volume
Term
What is the appropriate term for the "think filaments of myosin that constitute a central dark band"?
Definition
a. A band
Term
Which of the following is the cardioinhibitory center?
Definition
b. Parasympathetic excitatory neurons
Term
What is the effect of Angiotensin II?
Definition
B. Vasoconstriction
Term
Which of the following represents the measure of time from the onset of atrial activation to the onset of ventricular activation?
Definition
a. PR interval
Term
Which of the following is NOT correct regarding autoregulation?
Definition
c. Mechanism is well documented and is related to the sympathetic system
Term
Which of the following structures is NOT considered part of the acinus?
Definition
A. Trachea
Term
What is the process of exchange of carbon dioxide for oxygen called?
Definition
b. Respiration
Term
Which of the following would NOT shift the oxyhemoglobin dissociation curve to the right?
Definition
b. Hypocapnia
Term
Which of the following receptors monitor pH, PaCO2 and Pao2 of arterial blood?
Definition
d. Chemoreceptors
Term
Which of the following is NOT a major or accessory muscle of respiration?
Definition
b. Trapezius
Term
Which of the following is NOT a step in the process of gas exchange?
Definition
b. Degradation
Term
Which of the following is a TRUE statement regarding the lower airways?
Definition
c. The right and left main bronchi enter the lungs at the hila
Term
Which of the following is a structure of the upper airway?
Definition
b. Nasopharynx
Term
Which of the following is TRUE regarding the zones of the lungs?
Definition
d. Zone 3 is in the base of the lung
Term
A patient has been diagnosed with aspiration pneumonia. Which of the following is NOT a factor that affects outcome?
Definition
d. Protein content
Term
A patient has symmetrically dilated airways. Which type of bronchial dilation is this?
Definition
c. Cylindrical
Term
Which of the following is the appropriate term for "inadequate alveolar ventilation in relation to metabolic demands"?
Definition
b. Hypoventilation
Term
Which of the following is TRUE regarding asthma?
Definition
c. Eleven million people reported having an asthma attack in 2000
Term
A patient develops excess water in her lungs. What is the most common cause of this condition?
Definition
b. Heart disease
Term
Which of the following is TRUE regarding bronchiolitis?
Definition
C. It is an inflammatory obstruction of the small airways or bronchioles
Term
A 63-year-old man presents with a cough and dyspnea. He has been around asbestos. Which chronic condition has been associated with this?
Definition
b. Pulmonary fibrosis
Term
A patient has pus in the pleural space. She had a previous respiratory infection. What is the name for this condition?
Definition
c. Empyema
Term
A patient is born with a antitrypsin deficiency. Which of the following conditions will most likely manifest?
Definition
b. Emphysema
Term
How is TB spread from person to person?
Definition
b. Air droplet
Term
A patient has been exposed to a contaminated cooling system. A large number of people in the same building have developed pneumonia. The most likely pathogen is which of the following?
Definition
a. Legionella pneumophila
Term
Which of the following is NOT a cause of pulmonary fibrosis?
Definition
d. Upper respiratory infection
Term
Which of the following is TRUE regarding chronic bronchitis?
Definition
a. Hypersecretion of mucus
Term
Which of the following pathogens is consistent with nosocomial pneumonia?
Definition
d. Pseudomonas aeruginosa
Term
Which of the following is NOT a cause of hypercapnia?
Definition
d. Increased respiratory drive
Term
A patient is diagnosed with an antidiuretic hormone-producing lung tumor. Which of the following cancers is the most likely diagnosis?
Definition
d. small cell carcinoma
Term
A 19-year-old man experiences a gunshot wound to the chest. He has in increase in pressure in his chest cavity. Which of the following is NOT an appropriate description for this condition?
Definition
b. Spontaneous pneumothorax
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