Lab values & electrolytes worksheet with answers

Free printable Lab values & electrolytes worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

New worksheetPractise online with hints

For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.

Name: ____________________   Date: ____________

1.Easy

Which hemoglobin value in an adult man is within the typical reference range?

  1. A20.5 g/dL (205 g/L)
  2. B9.0 g/dL (90 g/L)
  3. C5.5 g/dL (55 g/L)
  4. D15.0 g/dL (150 g/L)
2.Easy

Which substance contributes most to normal serum osmolality?

  1. AUrea (from BUN)
  2. BPlasma albumin
  3. CGlucose in plasma
  4. DSodium and its anions
3.Easy

What is a typical adult reference range for serum magnesium?

  1. AAbout 6.0–8.0 mEq/L (3.0–4.0 mmol/L)
  2. BAbout 1.3–2.1 mEq/L (0.65–1.05 mmol/L)
  3. CAbout 0.3–0.7 mEq/L (0.15–0.35 mmol/L)
  4. DAbout 3.5–5.0 mEq/L (1.75–2.5 mmol/L)
4.Medium

A patient taking furosemide has a potassium of 3.3 mEq/L and is told to eat more potassium-rich foods. Which snack is the best choice?

  1. AWhite bread
  2. BDried apricots
  3. CRice cakes
  4. DPlain crackers
5.Medium

A woman who is 30 weeks pregnant has a new blood pressure of 152/98 mm Hg. Which urine finding would most support preeclampsia?

  1. AGlucose in the urine
  2. BKetones in the urine
  3. CNitrites in the urine
  4. DProtein in the urine
6.Medium

A patient with joint aches has a positive antinuclear antibody (ANA) test. Which statement is correct?

  1. AA positive ANA rules out all other autoimmune diseases
  2. BA positive ANA means the patient has a viral infection
  3. CA positive ANA proves the patient has rheumatoid arthritis
  4. DA positive ANA supports lupus but does not diagnose it alone
7.Hard

After lying on the floor for many hours, a patient has a CK of 40,000 U/L, a potassium of 6.1 mEq/L and dark urine. Which prescribed treatment is the priority?

  1. AFluid restriction to protect the heart from overload
  2. BLarge-volume IV fluids with cardiac monitoring
  3. CHigh-dose NSAIDs for the muscle pain
  4. DAn oral potassium supplement with each meal
8.Hard

The nurse teaches a patient who is starting warfarin. Which statement shows a need for further teaching?

  1. A"I will have my INR checked as often as I am told to"
  2. B"I will tell my dentist and pharmacist that I take warfarin"
  3. C"If I miss a dose, I will take two tablets the next day"
  4. D"I will keep my intake of green leafy vegetables about the same"

Answer key

  1. 1. D · 15.0 g/dL (150 g/L)
  2. 2. D · Sodium and its anions
  3. 3. B · About 1.3–2.1 mEq/L (0.65–1.05 mmol/L)
  4. 4. B · Dried apricots
  5. 5. D · Protein in the urine
  6. 6. D · A positive ANA supports lupus but does not diagnose it alone
  7. 7. B · Large-volume IV fluids with cardiac monitoring
  8. 8. C · "If I miss a dose, I will take two tablets the next day"

Full step-by-step solutions: practise this topic on examproblems.com.