NURS 5463 Fluid and electrolytes Exam Study Guide.
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Nurs 5463
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Nurs 5463
NURS 5463 Fluid and electrolytes Exam
Study Guide.
Normal osmolality - answer280-295 mOsm/kg
Osmolality of isotonic solution - answer250-375
osmolality of hypertonic solution - answer>375
osmolality of hypotonic solution - answer<250
Normal magnesium levels - answer1.8-2.4
normal calci...
NURS 5463 Fluid and electrolytes Exam
Study Guide.
Normal osmolality - answer✔280-295 mOsm/kg
Osmolality of isotonic solution - answer✔250-375
osmolality of hypertonic solution - answer✔>375
osmolality of hypotonic solution - answer✔<250
Normal magnesium levels - answer✔1.8-2.4
normal calcium levels - answer✔4.4-5.2
NS can cause what negative affect - answer✔acute kidney injury
LR can cause what negative affect - answer✔cerebral edema in head injuries and hepatic hypoperfusion
benefit of plasmalyte - answer✔lower risk of hyperchloremic metabolic acidosis and can be used with
blood
if 3% given too fast it can cause - answer✔intravascular volume overload
hypotonic saline contraindicated in - answer✔head injuries
indication of ½ NS - answer✔hypernatremia and free water deficit
rapid administration of ½ NS can lead to - answer✔hemolysis of RBC that leads to depletion of
intravascular volume which leads to cardiovascular collapse
dextrose in saline should be given to which 3 types of patients - answer✔hypoglycemic, alcohol or
fasting ketoacidosis, and with insulin to treat hyperkalemia
dextrose in saline is contraindicated in which two patients - answer✔uncontrolled dm and hypokalemia
what type of osmolality is D5W - answer✔hypotonic
D% ½ NS starts __ and ends - answer✔hypertonic; hypotonic
D5 NS starts __ and ends __ - answer✔hypertonic; isotonic
isotonic hyponatremia (284-295) causes - answer✔hyperproteinemia and hyperlipidemia
hypotonic hyponatremia (<280) hypovolemic causes - answer✔diarrhea, vomitting, third spacing of
fluids common from pancreatitis, hypoalbuminemia, small bowel obstruction, use of diuretics, use of
osmotic diuresis with glucose and mannitol, salt-wasting nephropathies, cerebral salt-wasting syndrome
as seen with urinary salt wasting, possibly caused by increased brain natriuretic peptide, and
mineralocorticoid deficiency.
euvolemic hyponatremia causes - answer✔certain drugs like desmopressin, oxytocin, SSRIs, thiazide
diuretics, antipsychotics, MDMA, ecstasy, and NSAIDS. Conditions include SIADH, Addison's disease,
hypothyroidism, primary polydipsia, potomania, excessive fluids, iatrogenic
two main causes of osmotic diuresis - answer✔hyperglycemia and mannitol
3 main Diagnostics tests for hyponatremia - answer✔urine sodium, sodium plasma, and urine osmolality
urine osmolality if less than 100 in hyponatremia is - answer✔polydipsia
urine osmolality greater than 100 in hyponatremia is - answer✔high ADH
a urine sodium less than 10 indicates - answer✔extrarenal loss of fluid as seen with vomiting and
diuretic use
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