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혈청 칼륨 5.9 mEq/L를 무엇이라고 하나요?

1. A고칼슘혈증
2. B고칼륨혈증
3. C저칼륨혈증
4. D고나트륨혈증

In iron-deficiency anemia, the total iron-binding capacity (TIBC) is usually:

1. AAbsent
2. BHigh
3. CLow
4. DNormal

Thrombocytopenia is usually defined as a platelet count below:

1. A1,000 × 10³/µL (1,000 × 10⁹/L)
2. B150 × 10³/µL (150 × 10⁹/L)
3. C15 × 10³/µL (15 × 10⁹/L)
4. D450 × 10³/µL (450 × 10⁹/L)

A test has very high sensitivity for a disease. What does a negative result mean?

1. AThe disease is certain, so treatment should begin
2. BThe patient must have a different disease instead
3. CThe disease is unlikely, so it helps rule it out
4. DThe result cannot be used, because sensitivity is high

Why is a baseline platelet count taken before starting heparin therapy?

1. ASo a later fall from heparin-induced thrombocytopenia is detected
2. BBecause heparin is given at a dose based on the platelet count
3. CBecause heparin increases the platelet count to dangerous levels
4. DSo that the INR can be calculated from the platelet count later

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 sign of new leukemia that needs immediate chemotherapy
3. CAn expected rise after splenectomy that increases clot risk
4. DA laboratory error, because platelets fall after splenectomy

Weeks after neck surgery, a patient has muscle cramps and tingling. Calcium is low, phosphate is high and parathyroid hormone (PTH) is low. Which condition fits best?

1. AChronic kidney disease
2. BPrimary hyperparathyroidism
3. CHypoparathyroidism
4. DVitamin D toxicity

A woman who is 34 weeks pregnant has high blood pressure, right upper abdominal pain, a platelet count of 70 × 10³/µL, raised ALT and AST, and a raised LDH. Which condition fits best?

1. AAcute cholecystitis
2. BHELLP syndrome
3. CGestational diabetes
4. DPhysiologic anemia of pregnancy