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Thrombocytopenia is usually defined as a platelet count below:

1. A450 × 10³/µL (450 × 10⁹/L)
2. B150 × 10³/µL (150 × 10⁹/L)
3. C1,000 × 10³/µL (1,000 × 10⁹/L)
4. D15 × 10³/µL (15 × 10⁹/L)

What is a typical adult reference range for serum bicarbonate (total CO₂) on a metabolic panel?

1. AAbout 98–106 mEq/L
2. BAbout 8–12 mEq/L
3. CAbout 22–28 mEq/L
4. DAbout 35–45 mEq/L

What is the purpose of a type and crossmatch before a transfusion?

1. ATo test the donor blood for bacterial contamination only
2. BTo find out how quickly the patient's blood forms a clot
3. CTo measure how much iron is stored in the patient's bone marrow
4. DTo check that donor blood is compatible with the patient's blood

A patient is scheduled for a liver biopsy. Which laboratory results should the nurse check before the procedure?

1. APlatelet count and PT/INR
2. BTSH and free T₄
3. CSerum sodium and chloride
4. DHbA1c and lipid panel

A nurse completed the hepatitis B vaccine series. Which result shows protective immunity?

1. AA raised ALT level
2. BAnti-HBs of 10 mIU/mL or more
3. CA positive HBsAg test
4. DA positive IgM anti-HBc

A patient who is breathless during a transfusion has hypotension, fever and bilateral lung infiltrates, with no signs of fluid overload. Which complication is most likely?

1. ATransfusion-related acute lung injury (TRALI)
2. BA simple allergic reaction with hives
3. CA mild febrile nonhemolytic reaction
4. DTransfusion-associated circulatory overload

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. AImmune thrombocytopenia (ITP)
2. BAcute leukemia
3. CDisseminated intravascular coagulation
4. DHemophilia A

디곡신을 복용하는 환자의 농도가 1.2 ng/mL, 칼륨이 2.8 mEq/L이고 새로운 빈번한 심실 이소성 박동이 있습니다. 가장 좋은 해석은 무엇인가요?

1. A농도가 일반 범위 안이므로 디곡신은 원인일 수 없다
2. B낮은 칼륨이 디곡신의 효과를 높이므로 독성일 가능성이 있다
3. C리듬을 조절하려면 더 높은 디곡신 용량이 필요하다
4. D칼륨은 심장 리듬에 영향을 주지 않는다