ANCC PMHNP LAB VALUES EXAM 2024
QUESTIONS AND ANSWERS
"LITHIUM THERAPY - CORRECT ANSWER CREATININE/BUN, SERUM ELECTROLYTES, CBC W/WBC &
DIFF, URINALYSIS, EKG, ck levels (post dose 12 hrs trough), after 4 days on med, then q 4-5 days during
initial therapy"
"GFR - CORRECT ANSWER >90, best measurement of kidney function, no need to adjust dose
depakote if GFR > 60"
"what meds do to lithium - CORRECT ANSWER ACE inhibitors, ARB's, nsaid, tetracyclines,
metronidazole can INCREASE LITHIUM"
"Calcium, Ca++ - CORRECT ANSWER 8.8-10.5
<7.0, tetany
>11.0, hyperparathyroidism
>13.5, hypercalcemic coma, metastatic cancer"
"Sodium, Na+ - CORRECT ANSWER 135-148 mEq/L"
"hyponatremia - CORRECT ANSWER drugs such as lithium, vasopressin, diuretics
addisons
renal disorder
gi fluid loss"
"Magnesium, Mg - CORRECT ANSWER 1.3 - 2.1 mEq/L
lithium can increase"
"hypermagnesemia - CORRECT ANSWER N/V, respiratory depression, hypotension, depressed skeletal
muscle contraction and nerve function, bradycardia"
"Potassium, K+ - CORRECT ANSWER 3.5-5.1 mEq/L"
"hyperkalemia - CORRECT ANSWER chronic marijuana use can elevate potassium"
"Chloride, Cl - CORRECT ANSWER 98 - 106
passive transport through sodium
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