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

On a liver panel, "direct bilirubin" refers to which form of bilirubin?

  1. ATotal urine urobilinogen
  2. BUnconjugated bilirubin
  3. CBilirubin in the stool
  4. DConjugated bilirubin
2.Easy

A low mean corpuscular volume (MCV) means that:

  1. AThe red cells are larger than normal (macrocytic)
  2. BThe bone marrow is making too many white cells
  3. CThe red cells contain more hemoglobin than normal
  4. DThe red cells are smaller than normal (microcytic)
3.Easy

What is a main role of albumin in the blood?

  1. AIt fights bacteria by engulfing them in the blood
  2. BIt holds fluid in the vessels by oncotic pressure
  3. CIt forms the mesh that holds a blood clot together
  4. DIt carries oxygen from the lungs to the tissues
4.Medium

A healthy patient has a mildly raised CK after running a marathon yesterday, without dark urine or symptoms. What is the most likely explanation?

  1. AAn acute myocardial infarction has occurred
  2. BThe patient has developed acute hepatitis
  3. CThe patient has developed acute pancreatitis
  4. DStrenuous exercise raised CK from skeletal muscle
5.Medium

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

  1. AHigh TSH with a low free T4
  2. BNormal TSH with a low free T4
  3. CLow TSH with a high free T4
  4. DHigh TSH with a normal free T4
6.Medium

The heparin infusion rate was changed according to protocol. When is the aPTT usually rechecked?

  1. AAbout 6 hours after the change
  2. BOnly after the infusion is stopped
  3. CAbout 3 days after the change
  4. DAbout 30 minutes after the change
7.Hard

Which set of results is most typical of iron-deficiency anemia?

  1. AHigh hemoglobin and high hematocrit
  2. BLow hemoglobin, small red cells (low MCV) and low ferritin
  3. CNormal hemoglobin with a high platelet count only
  4. DLow hemoglobin, large red cells (high MCV) and high ferritin
8.Hard

A patient with a platelet count of 35 × 10³/µL is prescribed an intramuscular injection. What should the nurse do?

  1. AGive the injection as prescribed and massage the site firmly
  2. BAsk the prescriber whether another route can be used
  3. CGive the injection and apply a heat pack
  4. DGive the injection with a longer needle

Answer key

  1. 1. D · Conjugated bilirubin
  2. 2. D · The red cells are smaller than normal (microcytic)
  3. 3. B · It holds fluid in the vessels by oncotic pressure
  4. 4. D · Strenuous exercise raised CK from skeletal muscle
  5. 5. C · Low TSH with a high free T4
  6. 6. A · About 6 hours after the change
  7. 7. B · Low hemoglobin, small red cells (low MCV) and low ferritin
  8. 8. B · Ask the prescriber whether another route can be used

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