Shared Flashcard Set

Details

PNUR 102 exam 2
Study guide for exam 2/midterm
175
Nursing
Undergraduate 1
08/16/2009

Additional Nursing Flashcards

 


 

Cards

Term
What is normal saline solution?
Definition
Isotonic solution, used to restore intravascular volume, replace extracellular fluid, and replace sodium losses.
Term
What kinds of assessment data does the nurse collect that relate to fluid, electrolyte, and acid-base problems?
Definition
I&Os, daily weights, lab values, vital signs, focuses assessments, identify high risk pts.
Term
What are some causes of Metabolic Acidosis?
Definition
diarrhea, renal failure, shock, salicylate overdose, diabetic ketoacidosis
Term
What are common causes of Metabolic Alkalosis?
Definition
vomiting, NG suctioning, excess sodium bicarb, hypokalemia.
Term
What are some causes of Resp. Acidosis?
Definition
sedatives, head trauma, aspiration, asthma, hypoxia, pneumonia.
Term
What are some common causes of Resp. Alkalosis?
Definition
anxiety, fever, sepsis.
Term
What is ROME?
Definition
Respiratory-Opposiste; Metabolic-Equal
Term
What is normal serum bicarbonete (HCO3) level?
Definition
22-26 mEq/L
Term
What is the normal pCO2?
Definition
35-45 mmHg
Term
What is normal serum pH?
Definition
7.35-7.45
Term
WHat is acidosis?
Definition
low pH
Term
What is alkalosis?
Definition
high pH
Term
What condition might occur as a result of hypercalcemia?
Definition
kidney stones
Term
What condition can result from chronic calcium deficiency?
Definition
osteoporosis- bone mass is lost, risk for fractures
Term
What are classic signs of hypocalcemia?
Definition
Chvostek's sign and Trousseau's signs.
Term
Chvostek's sign?
Definition
facial spasm when the facial nerve is tapped in front of the ear.
Term
Trousseaus sign?
Definition
carpal spasm that occurs when blood flow to the lower arm is restricted.
Term
What is the best way to improve the taste of liquid supplements?
Definition
dilute in chilled juice
Term
What is the significance of giving potassium sparing vs. potassium wasting diuretics to pts?
Definition
Both put pt at risk for electrolyte imbalance.
Term
Potassium sparing diuretics can cause?
Definition
hyperkalemia
Term
Potassium wasting diuretics can cause?
Definition
hypokalemia
Term
hypokalemia and hyperkalemia put pts at risk for what?
Definition
dysrhythmias- They need to have lab values monitored regularly.
Term
What are EARLY s/sx of potassium imbalance?
Definition
weakness, leg cramps
Term
hypo NA tremia
Definition
low sodium; s/s include: anorexia, headache, mental changes, hyperreflexia, muscle twitching, tremors, convulsions, coma.
Term
hyper NA tremia
Definition
high sodium; s/s include: thirst, restlessness, weakness, altered mental state, decreasing LOC, seizures, dry sticky mucous membranes, postural hypotension
Term
hypo KA lemia
Definition
low potassium; s/s include: dysrhythmias, ecg changes, anorexia, decreased bowel sounds, muscle weakness, leg cramps,
Term
hyper KA lemia
Definition
high potassium; s/s include: tall peaked T-waves, dysrhythmias, heart block, cardiac arrest, muscle weakness, paresthesis, flaccid paralysis
Term
hypo CAL cemia
Definition
low calcium; s/s include: tetany, paresthesias, muscle spasms, laryngospasm, CHVOSTEK sign and TROUSSEAUS sign, anxiety, confusion,
Term
hyper CAL cemia
Definition
high calcium; s/s include: muscle weakness, confusion, impaired memory, bizarre behavior, psychosis, dysrhythmias, INCREASED BP, INCREASED URINE output
Term
hypo MAGNES emia
Definition
low magnesium; s/s include: muscle weakness, tetany CHVOSTEK and TROUSSEAUS signs, dysphagia
Term
hyper MAGNES emia
Definition
high magnesium; s/s include: muscle weakness, vasodilation, facial flushing, sweating, DECREASED BP, cardiac arrest, bradycardia,
Term
What causes hyperKAlemia?
Definition
K+ >5 mEq/L; resulting from inadequate K+ excretion , excessive K+ intake. Impaired renal function is main cause.
Term
What causes hypoKAlemia?
Definition
K+ < 3.5 ; resulting from excessive potassium loss, NPO for extended time, anorexia. K+ is lost thru kidneys or GI tract. Major causes: diuretics, antibiotics, corticosteroids, vomiting, diarrhea
Term
hyperNAtremia is caused by?
Definition
> 145. Excessive fluid loss or inadequate intake. Hot, dry skin, excessive thirst.
Term
hypoNAtremia caused by?
Definition
NA < 135; "crazy water drinking", too much liquid, loss os sodium.
Term
normal calcium level?
Definition
8.5-10
Term
normal potassium level?
Definition
3.5-5
Term
normal sodium level?
Definition
135-145
Term
Normal daily intake of sodium?
Definition
2300 mg
Term
Food sources of calcium?
Definition
milk, milk products, soy, DGLV (dark green, leafy veggies)
Term
What foods have a lot of sodium?
Definition
processed foods, ham, bacon, salty snacks, canned foods, table salt
Term
What foods are sources of potassium?
Definition
bananas, apricots, melons, carrots, cauliflower, meat and fish
Term
Where in the body can potassium be found?
Definition
intracellular fluid
Term
What are the principle intracellular electrolytes?
Definition
potassium, magnesium, phosphate
Term
Where in the body is sodium found?
Definition
extracellular fluid
Term
What are the primary extracellular electrolytes?
Definition
sodium, chloride, and bicarbonate
Term
What is the best way to determine if the pt is losing or gaining fluid?
Definition
daily measurement of pt weight
Term
During a physical assessment, how can a nurse assess for fluid volume deficit?
Definition
weight loss of > or = 2 lbs, low BP, elevated temp, rapid, thready pulse, rapid shallow resp, dark yellow urine, poor tugor skin, sunken eyes, reduced cognition, sleep a lot
Term
What direction does water move in osmosis?
Definition
water will move in the direction of the highest concentration of solute (i.e. a lower water concentration). Salt is a solute, and when it is concentrated, it will draw water to its location whether in or out of the cell.
Term
Diffusion?
Definition
molecules move from areas of high concentration to areas of low concentration.
Term
Osmosis?
Definition
Diffusion of water across a membrane. Water follows salt. Salt SUCKS water. Salt sucks!
Term
filtration?
Definition
Process in which water and solutes move across capillary membranes, driven by fluid pressure.
Term
Active transport?
Definition
Process by which molecules are moved against a concentration gradient across cell membranes.
Term
What is the role of ADH?
Definition
Antidiuretic hormone regulats water excretion from the kidneys. Receptors in the hypothalamus secrete ADH when a change in osmolarity & blood volume is detected. ADH causes water to be reabsorbed into the kidney, less urinary output, restored blood volume.
Term
What does a lack of ADH do?
Definition
Lack of ADH causes impaired water reabsorbtion in the kidney, high volume and dilute urinary output, stimulates thirst mechanism.
Term
What happens if there is an excess of ADH?
Definition
Excessive ADH causes increased reabsorbtion of water into the kidney, scant and concentrated urinary output.
Term
What is the difference between interstitial and intravascular water compartments?
Definition
Interstitial fluid is in the tissue space b/w and around the cells. Intravascular is the watery plasma or serum portion of the blood.
Term
What is the difference b/w the intracellular and the extracellular water compartments?
Definition
Intracellular fluid is inside the cells. It represents the greatest pat of the body. Extracellular fluid is outside the cells ( in the tissue space and surrounding cells).
Term
What fluid represents the greatest part of the body?
Definition
intracellular fluid (inside the cells)
Term
What populations are at greatest risk for dehydration?
Definition
Elderly, b/c they have a decreased perception of thirst, decrease in body water, impaired reanl function, inadequate fluid intake due to fear of incontinence.
Term
What is the function of water in the body?
Definition
Water is the vehicle for transporting chemicals such as electrolytes, nonelectrolytes, and blood cells.
Term
Nonelectrolytes?
Definition
chemical compounds that remain bound together when dissolved in a solution, and DO NOT conduct electricity.
Term
Do nonelectrolytes conduct electricity?
Definition
no
Term
Electrolyes?
Definition
chemicals compounds (such as sodium & chloride) that are dissolved, absorbed, and distributed in body fluid. They have an electrical charge.
Term
Do electrolytes have an electrical charge?
Definition
yes (ELECTRolytes = ELECTric)
Term
What vitamin is especially important during the prenatal period? Why?
Definition
Folic acid. Lack of it can cause serious birth defects like spina bifida.
Term
What are the fat soluble vitamins?
Definition
ADEK- They are stored in the body for future needs.
Term
What are the water soluble vitamins?
Definition
B complex and C. They are excreted with bodily fluids. They require daily replacement.
Term
What is a megadose?
Definition
Dose of vitamins exceeding the amount required for adequate health.
Term
When can megadosing be toxic?
Definition
with fat soluble vitamins (water soluble is just wasteful)
Term
What is the major purpose of vit A (retinanol) and source?
Definition
promotes vision, healthy hair, skin. Dark green, leafy veggies, deep orange fruits and veggies, liver, carrots. (Retinol= wrinkle cream)
Term
What is the majot pupose of B complex-vit? and source?
Definition
carbohydrate, fat, and protein metabolism. Meats, liver, and whole grains.
Term
What is the major purpose of B-12 and source?
Definition
"Cyanocobalamin". folic acid and energy metabolism. Dairy and meats.
Term
What is the purpose of folic acid? source?
Definition
formation of RBCs, normal GI function. Dark green, leafy veggies, legumes, grains.
Term
What is the major purpose of vit c?
Definition
"Absorbic acid". Wound healing, immunity, healthy bones, teeth and gums. Citrus fruits, tomatoes, cabbage, broccoli.
Term
What is the major purpose of vit D? source?
Definition
bone and teeth mineralization, adsorbtion of calcium and phospherous. Fortified milk, tuna, salmon, eggs, butter.
Term
What is the major purpose of vit E? source?
Definition
RBC formation and integrity, protection of essential fatty acids. DGLV, veg oil, fish, legumes, nuts.
Term
What is the purpose of vit K? source?
Definition
production of prothrombin (for blood clotting). DGLV, liver, eggs.
Term
What is the nonfood source of vit D?
Definition
Vit D is formed in the skin by exposure to sunlight.
Term
Problems assoc with vit A defi?
Definition
night blindness, rough & dry skin, dry mucous membranes.
Term
What is assoc with vit B-complex defic?
Definition
nervous system dysfunction
Term
What is assoc with vit B12 defic?
Definition
pernicious anemia (lack of intrinsic factor=cannot absorb vit B12)
Term
What is assoc with folic acid defic?
Definition
neural tube defects
Term
What is assoc with vit C defic?
Definition
scurvy, anemia, bleeding gums, impaired wound healing
Term
What is assoc with it D defic?
Definition
rickets, osteomalacia
Term
What is assoc with vit E defic?
Definition
RBC breakdown
Term
What is assoc with vit K defic?
Definition
hemmorage
Term
What is pernicious anemia and how is it treatd?
Definition
The body does not make enough RBCs due to lack of B12. Usually occurs in ppl who lack intrisic factor who cannot absorb B12. This can result on stress on the heart, damage to nerve cells (tingling & numbness in hands and feet, memory loss and confusion. TX= B12 pills and shots.
Term
What are the physiological effects of aging on the urinary system?
Definition
decreased ability of the kidneys to concentrate urine, decreased bladder muscle tone, decreased bladder contracttility. These may result in nocturia, frequency of urination, urine retention and stasis resulting in UTIs.
Term
What types of factors can effect the amount of urine or the patient's ability to void?
Definition
Fluid I&O, dehydration (urine appears concentrated), fluid overload, caffeine/alcohol have diuretic effects, psychological factors, activity, disease processess, medications like diuretics.
Term
What types of assessment data are important to collect when assessing a pt's urinary status?
Definition
determine usual patterns of elimination, any recent changes in urinary elimination, history of previous problems
Term
What are risk factors for UTI?
Definition
sexually active, use of diaphrams, urinary staisis in post menapausal women, diabetes, aging, vaginal dryness
Term
What are the teaching points for the prevention of UTI?
Definition
fluid intake (8-10 oz X 8), observe urine, cleanse peri area, void after intercourse, drink 2 glasses of water before and after intercourse, shower, cranberry juice, cotton underwear.
Term
What nursing care should be given to a pt with an indwelling cath?
Definition
excellent hygeine, fluids, activity, keep urine acidic, keep container lower than bladder
Term
Oliguria
Definition
less than 400 per 24 hour period, bladder being partially emptied
Term
Anuria
Definition
no urine
Term
Polyuria
Definition
greater than normal urinary output, possible diebetes
Term
Albuminuria
Definition
urine contains albumin
Term
Glucosuria
Definition
Urine contains glucose.
Term
Nocturia
Definition
nighttime urination
Term
Dysuria
Definition
painful urine
Term
Stress incontinence
Definition
small amounts of urine i.e. dribbling. associated with sneezing, coughing, laughing
Term
urge incontinence
Definition
short lived ability to sustain control of flow
Term
Avg normal daily urine amount?
Definition
1200 ml/day average (anywhere from 500-3000)
Term
Kegel excercises
Definition
isometric exercises to improve the ability to retain urine
Term
Curative surgery
Definition
removal of defective tissue to restore function (hip replacement)
Term
palliative surgery
Definition
relieve symptoms but not cure
Term
PREoperative assessment data include?
Definition
Subjective-health hx, reason for surgery; Objective-meds, diag tests, level of knowledge
Term
How should pt anxiety be addressed?
Definition
Pt education like deep breathing. What are their expectations? Therapeutic talk.
Term
Autologous transfusion?
Definition
self donation of blood
Term
General anesthesia eliminates what?
Definition
all sensation. it is not sleep. (inhalent, injectable)
Term
Regional anesthesia blocks?
Definition
sensation in a area (spinal. local, topical)
Term
Common preop meds include?
Definition
antianxiety like ativan, narcotics like demerol, seditives like versed
Term
Conscious sedation means?
Definition
pts are sedated but not unconscious.
Term
POST op nursing priorities are to ensure?
Definition
safe recovery of surgical clients from anesthesia.
Term
What is donated blood tested for?
Definition
syphilis, HIV antibodies, hepatitis
Term
What is the univesal DONOR blood type?
Definition
O
Term
What is the universal RECIPIENT blood type?
Definition
AB
Term
What is the carrier substance for glucose?
Definition
insulin
Term
Organ that excretes water to maintain or restore proper balance?
Definition
kidneys
Term
Blood and blood products are examples of this type of solution?
Definition
colloids
Term
Also known as thrombocytes?
Definition
platelets
Term
mild dyhydration %?
Definition
3-6%
Term
moderate dehydration %?
Definition
6-10%
Term
moderate dehydration %?
Definition
6-10%
Term
severe dehydration %?
Definition
9-15%
Term
A common tissue expander?
Definition
Dextran 40
Term
What should a nurse do when a pt is receiving a blood transfusion?
Definition
Stay with the pt for the first 15 minutes.
Term
Antidote for Coumadin?
Definition
Vit K
Term
Fat soluble vit ?
Definition
"DEAK"
Term
S/s of vit B12 deficiency?
Definition
depression, anorexia, tired, dizzyness
Term
How much folic acid should pregnant women take?
Definition
600 mcg beginning before conception through the 1st six weeks of pregnancy.
Term
Who has the greatest % of water in the body?
Definition
infants at 75%
Term
Who has the least % of water in the body?
Definition
adults over the age of 65 (45%)
Term
Where does fluid go with a hypotonic condition?
Definition
fluid goes toward the inside of the cell
Term
Where does fluid go with a hypertonic condition?
Definition
fluid goes toward outside the cell
Term
What is an example of Active Transport?
Definition
the sodium potassium pump (the majority of sodium is outside the cell)
Term
What does Active Transport do?
Definition
Maintains NA+ outside the cell and K+ inside the cell.
Term
How much water equals 1 lb?
Definition
500 mL
Term
Is 0.9NS isotonic? T or F?
Definition
True
Term
What is the number 1, primary indicator of fluid volume disturbances?
Definition
WEIGHT!!!!
Term
What are the s/s of fluid volume deficit?
Definition
WEIGHT. Lung sounds (crackles) are also a good indicator.
Term
High sodium inside the cell makes ....?
Definition
It makes water leave the cell.
Term
Sodium excretion is controlled by what?
Definition
the kidneys
Term
Why should you not give water to someone on gastric suction?
Definition
Water may wash out even more electrolytes.
Term
S/s of hypokalemia?
Definition
muscle weakness or leg cramps
Term
What can cause hyperkalemia?
Definition
dialysis, crushing injury, burn pt
Term
Can potassium be given as an IV push?
Definition
NEVER!! It must be SLOW. Death Row ppl are given IV push b/c it stops the heart.
Term
Where is the parathyroid gland located?
Definition
right above thyroid gland in chest
Term
What is the major function of the parathyroid?
Definition
increases calcium absorption
Term
Kidney stones can result from ?
Definition
Increased calcium in the urine.
Term
What should a nurse teach a pt related to calcium intake?
Definition
If at risk for kidney stones, increase acid-ash foods like meat, fish, and poultry, eggs, prunes, plums, and cranberries. Encourage weight bearing activities. Increase fluid intake to 2000-3000mL per day.
Term
Why could magnesium be administered to asthmatics?
Definition
It is a smooth muscle relaxant.
Term
Calcium has an inverse relationship to what?
Definition
Phosphorus
Term
What are the two major systems that regulate the acid-base process?
Definition
Respiratory and Renal. They are important buffer systems.
Term
What kind of blood is drawn to determine acid-base balance?
Definition
arterial NOT venous
Term
pyuria
Definition
puss in the urine
Term
hematuria
Definition
blood in the urine
Term
ketonuria
Definition
ketones in the urine
Term
Is urinary incontinence a normal part of aging?
Definition
no
Term
What is a reflex bladder?
Definition
over-stretched bladder which causes leakage
Term
What is an overflow bladder?
Definition
full bladder that causes leakage
Term
What is urge incontinence?
Definition
got to go right now
Term
What is functional incontinence?
Definition
needs help but can make it to the bathroom
Term
What is PVR?
Definition
post-void residual. It is the amount of urine left in the bladder immediately after voiding. it is a diagnostic evaluation for urinary incontinence.
Term
PVR rates?
Definition
PVR < 50 mL = adequate bladder emptying; PVR > 200 mL = inadequate bladder emptying; PVR b/w 50-200 needs further evaluation
Term
What is urodynamics?
Definition
Measure how urine flows, is stored, and is eliminated.
Term
A pt just had a lumbar puncture. What should the pt do after the procedure?
Definition
Pt should remain flat for 6-12 hrs. The nurse should monitor neuro status and encourage fluids.
Term
How do wounds usually heal?
Definition
1st-Primary intension. 2nd-If infected, it heals by secondary intention. 3rd- Tertiary intention using skin grafts.
Term
atelectasis?
Definition
partially collapsed lung
Term
What should a nurse's primary consideration be during post op?
Definition
Data collection and assessment to prevent pneumonia and atelectasis.
Term
What should normal urine output be?
Definition
approx 50 mL/h (at the very least 30 mL/h0
Term
What position should a pt be put into when treated for shock?
Definition
supine
Term
What is a Homan's sign?
Definition
An early sign of DVT (deep vein thrombosis). If you flex your foot, it hurts.
Term
What is a paralytic ileus?
Definition
temp paralyzed ileus due to surgery. Can be a risk for constipationT
Supporting users have an ad free experience!