module 5.1, 5.2, 5.3 NSG 155 Flashcards
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loop diuretics
examples (lasix,bumex) they lose k+, calcium and sodium, given for SIADH and FVE, know BP, k level, creatinine, BUN before you give also STOP them when a pt has FVD or is dehydrated or metabolic alkalosis K low)
Normal electrolyte levels
k- 3.5-5.0 (potassium) na- 136-145 (sodium) ca- 9.0-10.5 ( calcium) mg- 1.3-2.1 (magnesium) phosphorous- 3.0-4.5 cl- 98-106 (chloride) albumin- 3.4-5 hemoglobin 12-16 female 14-18 male hematocrit 36-47 female 42-52 male
hyponaturemia
less than 136 low sodium caused by diuertics, ace inhibitors, addisons patient, diarrhea and vomitting, drowning, renal failure, diabetic, may have altered LOC, cerebral edema, anxious, hyper, muscle weakness, twitching, orthostatic hypotension, tachycardia treat the cause, increase intake, give normal saline or lactated ringers (isotonic) or a hypertonic IV solution, restrict fluids to people with water intoxication (dilutional hyponaturemia) (low na but over hydrated)
hypernaturemia
sodium over 145- caused by steroids, sweating, cushings pt, over infusing IV, infection, fever pt will have a decreased LOC, muscle twitching, full bounding pulse, pad the side rails because they can seize, give a loop, hypotonic IV, eat low sodium less than 2 gram, stop smoking, exercise, fresh fruits and veggies
hypokalemia
potassium less than 3.5- caused by loops, steroids, ng tubes vomiting, diarhhea, metabolic alkalosis, these pts have arrhythmia, shallow respirations, low BP, altered LOC, hypoactive bowel sounds, distended abdomen, leg cramps give IV at 10 an hour ONLY on a pump never IV push, monitor site for phlebitis because k is a vesicant and is very irritating to skin, increase potassium intake, give supplements STOP digoxin because of possible dig toxicity
hyperkalemia
potassium above 5- caused by excessive intake, too much IV, k sparing diuretics(aldactalone,spiractalone) can cause muscle weakness, arrythmias, cardiac arrest, GI upset, give k-exelate, give a loop, give insulin d50
calcium
when calcium is up, phosphate is down, when calcium is low, the pt can have trousseaus and chvoteks, nerve impulses, skeletal, muscle contractions, if pt had thyroid or neck surgery they can also have low calcium,
hypoalbuminemia
low protein, caused by dehydration, malnutrition, dehydration, starving, dieting, burns liver disease, chronic infection
normal ABG levels
pH- 7.35-7.45
HCO3- 21-28
pCo2- 35-45
02- 80-100
respiratory acidosis
co2 above 45, pH below 7.35, they are hypo ventilating, also caused by narcotics, COPD, head/neck trauma, obesity, cushings, asthma, smoking. give them pain meds, tell them to cough and deep breathe, mechanically ventilate, steroids, low flow o2, give narcan for opioid overdose, make sure their LOC is WNL (earliest sign of hypoxia)
respiratory alkalosis
co2 below 35, pH above 7.45, caused mostly by fear and anxiety, also aspirin toxicity, they are hyperventilating (give a mask or paper bag) give mucomyst for aspirin tox
metabolic acidosis
HCO3 below 21 pH below 7.35, caused by renal disease, uncontrolled diabetic, DKA, seizures, diarhhea(out your ass) k-sparings, your gonna see and increases RR, kussmauls respirations, give k-exelate to get rid of k, also give d50 w/ insulin
metabolic alkalosis
HCO3 above 28 pH above 7.45, k is low, caused by antacid use (tums) TPN therapy, they are going to complain of muscle weakness, vomiting, you want to give antiemetics
hypothyroidism
under active thyroid gland due to thyroidectomy, atrophy of the gland, autoimmune disorders, there is an increased TSH and a decreased t3 and t4, people have slow metabolism, happens to women more than men, they also have cardiomegaly, activity intolerance, high cholesterol, slurred slow speech, altered LOC, and are overweight, treat with synthroid and if they had a thyroidectomy make sure they take this med all their life. put them on a low calorie diet
hyperthyroidism
sustained release of thyroid hormone (over active) increased level of t3 and t4 and a decreased level of TSH, causes are autoimmune (graves) or goiters, everything speeds up so tachycardia, increased metabolism, increased systolic BP, frequent bowel movements, fast RR, warm moist skin, muscle weakness, restlessness, increased temperature give an anti thyroid med PTU, a b-blocker to manage their hypertension and tachycardia(propranolol, inderal) an iodine solution SSKI, Lugol) and tapazole