Werkblad Laboratoriumwaarden en elektrolyten met antwoorden

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Naam: ____________________   Datum: ____________

1.Makkelijk

A laboratory reports that a blood sample is "hemolyzed." What does this mean?

  1. AThe sample was taken from an artery
  2. BThe sample has a very low hemoglobin
  3. CRed cells in the sample have broken open
  4. DThe sample contains too many platelets
2.Makkelijk

Wat is het belangrijkste kation in de vloeistof binnen de cellen?

  1. AKalium
  2. BCalcium
  3. CChloride
  4. DNatrium
3.Makkelijk

Wat is het algemeen genoemde therapeutische bereik voor serumdigoxine?

  1. AOngeveer 20–40 ng/mL
  2. BOngeveer 10–20 ng/mL
  3. COngeveer 0,5–2,0 ng/mL
  4. DOngeveer 0,05–0,2 ng/mL
4.Gemiddeld

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.Gemiddeld

A patient with iron-deficiency anemia started oral iron. Which result is usually the earliest sign that treatment is working?

  1. AA fall in the white cell count
  2. BA rise in the platelet count
  3. CA rise in the reticulocyte count
  4. DA fall in the mean cell volume (MCV)
6.Gemiddeld

A pregnant woman's blood type is O Rh-negative, and her antibody screen (indirect Coombs test) is negative. What is usually offered at about 28 weeks?

  1. ADaily oral iron and folic acid supplements only
  2. BAn IV dose of vitamin K given for the fetus
  3. CA transfusion of group O Rh-positive red cells
  4. DAnti-D immunoglobulin (Rho(D) immune globulin)
7.Moeilijk

A woman with preeclampsia is receiving IV magnesium sulfate. Her urine output has fallen and her creatinine is rising. Why is this a concern?

  1. AMagnesium is broken down by the liver, so it will stop working soon
  2. BMagnesium causes potassium loss, so the kidneys release more fluid
  3. CMagnesium is excreted by the kidneys, so it can build up to toxic levels
  4. DPoor kidney function makes the magnesium level fall quickly
8.Moeilijk

A 5-year-old has new bruising and petechiae two weeks after a viral illness. Platelets are 12 × 10³/µL; hemoglobin, white cell count and clotting times are normal. Which condition is most likely?

  1. AAcute leukemia
  2. BImmune thrombocytopenia (ITP)
  3. CDisseminated intravascular coagulation
  4. DHemophilia A

Antwoordenblad

  1. 1. C · Red cells in the sample have broken open
  2. 2. A · Kalium
  3. 3. C · Ongeveer 0,5–2,0 ng/mL
  4. 4. D · Strenuous exercise raised CK from skeletal muscle
  5. 5. C · A rise in the reticulocyte count
  6. 6. D · Anti-D immunoglobulin (Rho(D) immune globulin)
  7. 7. C · Magnesium is excreted by the kidneys, so it can build up to toxic levels
  8. 8. B · Immune thrombocytopenia (ITP)

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