Werkblad Laboratoriumwaarden en elektrolyten met antwoorden

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Naam: ____________________   Datum: ____________

1.Makkelijk

What does the term "leukopenia" mean?

  1. AA low white blood cell count
  2. BA high white blood cell count
  3. CA high platelet count
  4. DA low red blood cell count
2.Makkelijk

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

  1. ATotal urine urobilinogen
  2. BBilirubin in the stool
  3. CConjugated bilirubin
  4. DUnconjugated bilirubin
3.Makkelijk

Using American Diabetes Association (ADA) criteria, which HbA1c range is classed as prediabetes?

  1. A6,5–7,5% (48–58 mmol/mol)
  2. B4,0–5,6% (20–38 mmol/mol)
  3. C8,0–9,0% (64–75 mmol/mol)
  4. D5,7–6,4% (39–47 mmol/mol)
4.Gemiddeld

A urine culture is ordered for a patient with an indwelling urinary catheter. How should the nurse collect the sample?

  1. APour urine from the drainage bag into a sterile cup
  2. BAspirate from the sampling port with a sterile syringe
  3. CDisconnect the catheter from the tubing and let it drain
  4. DRemove the catheter and culture the catheter tip
5.Gemiddeld

A patient has a hot, swollen big toe. The serum uric acid is normal. Which statement is correct?

  1. AGout is still possible, as urate can be normal in an attack
  2. BGout is certain, as a normal urate proves the diagnosis
  3. CGout is ruled out, as uric acid is always high in an attack
  4. DGout can only be diagnosed with a CT scan of the foot
6.Gemiddeld

Why must a blue-top (citrate) coagulation tube be filled to the correct level?

  1. AUnderfilled tubes always give a falsely low hemoglobin and hematocrit
  2. BThe laboratory charges extra when a tube is not filled correctly
  3. CThe blood-to-anticoagulant ratio must be right for accurate clotting times
  4. DAn overfull tube is needed to measure the potassium level
7.Moeilijk

Four drug levels are reported. Which patient should the nurse assess first?

  1. ADigoxin 1,0 ng/mL with a pulse of 72/min
  2. BPhenytoin 15 mcg/mL with no symptoms
  3. CValproate 75 mcg/mL with no symptoms
  4. DLithium 1,8 mEq/L with a new coarse tremor
8.Moeilijk

A patient on high-dose dexamethasone has a white cell count of 15 × 10³/µL, mostly mature neutrophils with no bands. They have no fever and no signs of infection. What is the most likely explanation?

  1. AA steroid effect that moves neutrophils into the circulating blood
  2. BA new leukemia that is confirmed by this result alone
  3. CCertain sepsis that needs antibiotics started without delay
  4. DA laboratory error, because steroids always lower the white count

Antwoordenblad

  1. 1. A · A low white blood cell count
  2. 2. C · Conjugated bilirubin
  3. 3. D · 5,7–6,4% (39–47 mmol/mol)
  4. 4. B · Aspirate from the sampling port with a sterile syringe
  5. 5. A · Gout is still possible, as urate can be normal in an attack
  6. 6. C · The blood-to-anticoagulant ratio must be right for accurate clotting times
  7. 7. D · Lithium 1,8 mEq/L with a new coarse tremor
  8. 8. A · A steroid effect that moves neutrophils into the circulating blood

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