Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

What is a typical adult reference range for total serum bilirubin?

1. AAbout 0,03–0,1 mg/dL (0,5–1,7 µmol/L)
2. BAbout 3–12 mg/dL (51–205 µmol/L)
3. CAbout 10–20 mg/dL (171–342 µmol/L)
4. DAbout 0,3–1,2 mg/dL (5–21 µmol/L)

The tumor marker CA-125 is most often used to follow which cancer?

1. AColon cancer
2. BThyroid cancer
3. CLung cancer
4. DOvarian cancer

Which sample is commonly used to screen a patient for MRSA carriage on admission?

1. AA sample of stool sent for culture
2. BA blood culture from one arm
3. CA swab from the front of the nose
4. DA clean-catch midstream urine sample

A week after a splenectomy, a patient's platelet count is 650 × 10³/µL. What is the best interpretation?

1. AA sign of iron overload from the surgery and transfusion
2. BA laboratory error, because platelets fall after splenectomy
3. CAn expected rise after splenectomy that increases clot risk
4. DA sign of new leukemia that needs immediate chemotherapy

Which technique is recommended for a capillary blood glucose test on an adult's finger?

1. APrick the center of the fingertip
2. BPrick the side of the fingertip
3. CUse the same finger every time
4. DSqueeze the finger very hard

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

1. AThe right arm
2. BThe left arm
3. CThe right hand
4. DEither arm equally

A health care worker's hepatitis B tests show: HBsAg negative, anti-HBs positive, anti-HBc positive. What does this mean?

1. APast infection that has resolved, with immunity
2. BCurrent chronic hepatitis B infection
3. CImmunity from vaccination only, never infected
4. DNot immune and never exposed to the virus

A patient on hemodialysis receives epoetin, but the hemoglobin has not risen in 2 months. Which results should be checked first?

1. AAmylase and lipase levels
2. BFerritin and transferrin saturation
3. CTroponin and creatine kinase
4. DTSH and the free T₃ level