Lab values & electrolytes worksheet with answers

Which blood test is the usual measure of a person's vitamin D status?

1. AParathyroid hormone
2. B25-hydroxyvitamin D
3. C1,25-dihydroxyvitamin D
4. DSerum phosphate

Which drug is routinely monitored with blood levels because of its narrow therapeutic range?

1. ALoratadine
2. BOmeprazole
3. CAmoxicillin
4. DLithium

A serum sodium of 128 mEq/L is called:

1. AHyperkalemia
2. BHyponatremia
3. CHypernatremia
4. DHypokalemia

Before giving prescribed IV potassium chloride, which assessment is most important?

1. APupil size and reaction to light
2. BHearing in both ears
3. CSkin turgor on the forearm
4. DUrine output and kidney function

A patient with HIV on antiretroviral therapy has an undetectable viral load. What does this mean?

1. AThe treatment can now be stopped without any risk
2. BThe treatment is suppressing the virus very well
3. CThe CD4 count must now be dangerously low too
4. DThe virus has been completely cured and removed

A patient’s hemoglobin is 7.8 g/dL (78 g/L). Which findings would the nurse expect?

1. AFatigue, pallor, a fast heart rate and breathlessness on exertion
2. BA slow heart rate, flushed skin and a high blood pressure
3. CItching, yellow skin and dark urine
4. DHeadache, nosebleeds and a red face

Two weeks after a sore throat, a child develops dark (cola-colored) urine, puffy eyes and high blood pressure. Urinalysis shows red cell casts and protein. Which condition is most likely?

1. APrerenal acute kidney injury
2. BKidney stone in the ureter
3. CPost-streptococcal glomerulonephritis
4. DLower urinary tract infection (cystitis)

A patient in diabetic ketoacidosis has a potassium of 3.0 mEq/L before the insulin infusion is started. What should the nurse expect?

1. AFluids are stopped until the potassium is normal
2. BPotassium is not replaced, because insulin will raise it
3. CPotassium is replaced first, and insulin waits until the level is safe per protocol
4. DInsulin is started at once at a higher rate