Lab values & electrolytes worksheet with answers

A low mean corpuscular hemoglobin concentration (MCHC) means that the red cells are:

1. AShaped like a sickle
2. BPaler than normal (hypochromic)
3. CLarger than normal (macrocytic)
4. DMore numerous than normal

A urine dipstick is positive for leukocyte esterase. What does this show?

1. AProtein is leaking through the glomeruli
2. BRed blood cells are present in the urine
3. CBilirubin is being passed in the urine
4. DWhite blood cells are present in the urine

What is a typical adult reference range for the white blood cell count?

1. AAbout 0.5–1.0 × 10³/µL (0.5–1.0 × 10⁹/L)
2. BAbout 150–400 × 10³/µL (150–400 × 10⁹/L)
3. CAbout 25–40 × 10³/µL (25–40 × 10⁹/L)
4. DAbout 4.5–11 × 10³/µL (4.5–11 × 10⁹/L)

A patient receiving chemotherapy has an ANC of 300/µL and a new temperature of 38.3 °C (100.9 °F). What should the nurse do first?

1. AGive acetaminophen (paracetamol) and recheck the temperature in 4 hours
2. BRemove extra blankets and offer a tepid sponge bath
3. CReport it at once so cultures and antibiotics start quickly
4. DEncourage oral fluids and record the fever in the chart

For most hospitalized adults with diabetes who are critically ill, which glucose target range is commonly recommended?

1. AAbout 60–80 mg/dL (3.3–4.4 mmol/L)
2. BAbout 250–300 mg/dL (13.9–16.7 mmol/L)
3. CAbout 140–180 mg/dL (7.8–10 mmol/L)
4. DAbout 300–350 mg/dL (16.7–19.4 mmol/L)

A young adult with new diabetes has a very low C-peptide level. What does this suggest?

1. AThe kidneys are excreting all of the patient's insulin in urine
2. BThe patient is injecting too much insulin and needs a lower dose
3. CThe pancreas is making very little insulin, as in type 1 diabetes
4. DThe patient has high insulin resistance, as in type 2 diabetes

The nurse teaches a patient about the HbA1c test. Which statement shows a need for further teaching?

1. A"My daily finger-stick readings still matter between the tests"
2. B"I must not eat anything for 12 hours before the HbA1c test"
3. C"The test shows my average glucose over the past few months"
4. D"A lower result means less risk of damage to my eyes and kidneys"

A patient with blood pressure that is hard to control has a potassium of 2.9 mEq/L, a sodium of 144 mEq/L and a raised serum bicarbonate, without taking a diuretic. Which condition is most likely?

1. ACentral diabetes insipidus
2. BPrimary hyperaldosteronism
3. CPrimary adrenal insufficiency
4. DSyndrome of inappropriate ADH