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 fasting blood glucose is within the typical normal range for an adult without diabetes?

  1. A85 mg/dL (4.7 mmol/L)
  2. B45 mg/dL (2.5 mmol/L)
  3. C210 mg/dL (11.7 mmol/L)
  4. D140 mg/dL (7.8 mmol/L)
2.Easy

What does a raised C-reactive protein (CRP) mainly indicate?

  1. AKidney failure in particular
  2. BDehydration and fluid loss
  3. CInflammation in the body
  4. DA heart attack in particular
3.Easy

Which laboratory test is used to monitor warfarin therapy?

  1. AaPTT
  2. BD-dimer
  3. CPlatelet count
  4. DPT with INR
4.Medium

Why is a blood β-hydroxybutyrate level often preferred to a urine ketone dipstick in DKA?

  1. AThe urine dipstick only detects ketones in people without diabetes
  2. BIt shows the average ketone level over the past three months
  3. CIt measures the main ketone in DKA, and the dipstick may miss it
  4. DIt is the only test that can measure glucose and ketones together
5.Medium

A patient had a right mastectomy with removal of axillary lymph nodes. Where is the best place to draw blood?

  1. AThe left arm
  2. BThe right arm
  3. CEither arm equally
  4. DThe right hand
6.Medium

A 55-year-old has a positive fecal immunochemical test (FIT) during routine screening. What is the usual next step?

  1. ARepeat the test in 10 years
  2. BNo action if there are no symptoms
  3. CStart an iron supplement only
  4. DReferral for colonoscopy
7.Hard

During surgery under general anesthesia, a patient develops a rising end-tidal CO2, muscle rigidity and tachycardia, then a high potassium and a rising temperature. Which condition is most likely?

  1. AHypovolemic shock
  2. BMalignant hyperthermia
  3. CAcute hemolytic transfusion reaction
  4. DHypoglycemia from fasting
8.Hard

Which finding most strongly suggests that a patient’s raised creatinine is due to acute kidney injury rather than long-standing chronic kidney disease?

  1. AThe patient has small kidneys on an ultrasound scan
  2. BThe patient has had a high creatinine for many years
  3. CThe patient has long-standing anemia
  4. DThe creatinine was normal three days ago and has doubled since

Answer key

  1. 1. A · 85 mg/dL (4.7 mmol/L)
  2. 2. C · Inflammation in the body
  3. 3. D · PT with INR
  4. 4. C · It measures the main ketone in DKA, and the dipstick may miss it
  5. 5. A · The left arm
  6. 6. D · Referral for colonoscopy
  7. 7. B · Malignant hyperthermia
  8. 8. D · The creatinine was normal three days ago and has doubled since

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