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.

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Name: ____________________   Date: ____________

1.Easy

Which blood group's plasma can be given to patients of any ABO group (universal plasma donor)?

  1. AGroup AB
  2. BGroup B
  3. CGroup A
  4. DGroup O
2.Easy

Chronic kidney disease is usually defined by an eGFR below which value for more than 3 months?

  1. A60 mL/min/1.73 m²
  2. B120 mL/min/1.73 m²
  3. C15 mL/min/1.73 m²
  4. D90 mL/min/1.73 m²
3.Easy

Which gland produces thyroid-stimulating hormone (TSH)?

  1. AThe adrenal cortex
  2. BThe thyroid gland itself
  3. CThe parathyroid glands
  4. DThe anterior pituitary gland
4.Medium

A patient who is breathless during a transfusion has hypotension, fever and bilateral lung infiltrates, with no signs of fluid overload. Which complication is most likely?

  1. AA simple allergic reaction with hives
  2. BTransfusion-related acute lung injury (TRALI)
  3. CTransfusion-associated circulatory overload
  4. DA mild febrile nonhemolytic reaction
5.Medium

A patient taking spironolactone asks about using a salt substitute. What should the nurse explain?

  1. ASalt substitutes are safe because they contain only sodium chloride
  2. BSalt substitutes are fine as long as the patient drinks more water
  3. CMost salt substitutes contain potassium and can raise the level too high
  4. DSalt substitutes protect against the potassium loss caused by this drug
6.Medium

A patient has weight loss, tremor and heat intolerance. Which thyroid test pattern fits Graves disease?

  1. ANormal TSH with a low free T4
  2. BLow TSH with a high free T4
  3. CHigh TSH with a normal free T4
  4. DHigh TSH with a low free T4
7.Hard

Why can a normal creatinine be misleading in a frail older adult with low muscle mass?

  1. AA normal creatinine always proves normal kidney function
  2. BCreatinine levels do not depend on muscle mass at all
  3. COlder adults always have a higher creatinine than younger adults do
  4. DLess muscle makes less creatinine, hiding reduced kidney function
8.Hard

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. ASyndrome of inappropriate ADH
  2. BCentral diabetes insipidus
  3. CPrimary adrenal insufficiency
  4. DPrimary hyperaldosteronism

Answer key

  1. 1. A · Group AB
  2. 2. A · 60 mL/min/1.73 m²
  3. 3. D · The anterior pituitary gland
  4. 4. B · Transfusion-related acute lung injury (TRALI)
  5. 5. C · Most salt substitutes contain potassium and can raise the level too high
  6. 6. B · Low TSH with a high free T4
  7. 7. D · Less muscle makes less creatinine, hiding reduced kidney function
  8. 8. D · Primary hyperaldosteronism

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