정답이 있는 검사 수치와 전해질 학습지

Uric acid in the blood is a breakdown product of:

1. AHemoglobin
2. BFats
3. CPurines
4. DGlucose

Which blood marker is the most specific for injury to the heart muscle?

1. ATotal creatine kinase
2. BSerum myoglobin
3. CLactate dehydrogenase
4. DCardiac troponin

백혈구 수의 전형적인 성인 기준 범위는 얼마인가요?

1. A약 4.5–11 × 10³/µL (4.5–11 × 10⁹/L)
2. B약 0.5–1.0 × 10³/µL (0.5–1.0 × 10⁹/L)
3. C약 150–400 × 10³/µL (150–400 × 10⁹/L)
4. D약 25–40 × 10³/µL (25–40 × 10⁹/L)

패혈증이 의심되는 환자의 혈액 배양은 언제 채취해야 하나요?

1. A첫 항생제 투여 전에, 투여를 크게 지연시키지 않으면서
2. B열이 3일 넘게 지속될 때만
3. C항생제를 세 번 투여한 뒤
4. D항생제는 결과에 영향을 주지 않으므로 아무 때나

A patient had a total thyroidectomy yesterday. Which laboratory value is most important to monitor in the first days after surgery?

1. ASerum sodium
2. BSerum calcium
3. CSerum potassium
4. DSerum glucose

Which blood collection practice helps prevent hemolysis of the sample?

1. AUsing the smallest needle available for every patient
2. BLeaving the tourniquet on for at least 3 minutes
3. CForcing blood quickly through a needle into the tube
4. DGently inverting the tubes instead of shaking them

A patient with advanced chronic kidney disease has a mildly raised troponin that has stayed the same on several tests over months. There is no chest pain and the ECG is unchanged. What is the best interpretation?

1. AA chronic stable rise; infarction needs a rising or falling pattern
2. BA laboratory error, because troponin is never raised in kidney disease
3. CProof of an acute myocardial infarction that needs emergency treatment now
4. DA sign of skeletal muscle injury, because troponin comes from all muscles

A patient's potassium is 7.2 mEq/L, and the monitor shows wide QRS complexes. Several treatments are prescribed. Which should be given first?

1. AIV furosemide (a loop diuretic)
2. BIV calcium gluconate (or chloride)
3. CAn oral potassium binder dose
4. DUrgent hemodialysis session