解答つき検査値と電解質ワークシート

抗凝固薬を服用していない人の INR は、通常、約どれくらいですか？

1. A0.8–1.2
2. B3.5–4.5
3. C2.0–3.0
4. D5.0–6.0

尿比重 1.035 は、何を最も強く示唆しますか？

1. Aすべての患者にとって正常な尿
2. B尿崩症のときのような、非常に薄い尿
3. C脱水のときのような、濃縮した尿
4. D尿路感染症

Which condition commonly causes a high serum potassium?

1. ARepeated vomiting
2. BLoop diuretic use
3. CKidney failure
4. DSevere diarrhea

A patient's levothyroxine dose was changed today. When is the TSH usually rechecked?

1. AAfter about 1 year
2. BAfter about 24 hours
3. CAfter about 6–8 weeks
4. DAfter about 3 days

重度の肝疾患と羽ばたき振戦のある患者の錯乱の原因を、最もよく反映する検査値はどれですか？

1. A血清カリウムの低下のみ
2. B血清リパーゼの低下
3. Cトロポニンの上昇
4. D血清アンモニアの上昇

A patient's potassium is unexpectedly 5.8 mEq/L. The sample was taken after the tourniquet was on for several minutes while the patient pumped their fist. What is the best interpretation?

1. AFist pumping lowers potassium, so the true level is even higher
2. BThe result may be falsely high and should be repeated with better technique
3. CThe result confirms true hyperkalemia and needs no further checking
4. DTourniquet time affects only the glucose result, not the potassium

A patient receiving chemotherapy has a white cell count of 1.8 × 10³/µL with 20% neutrophils and 5% bands. What is the absolute neutrophil count (ANC)?

1. A1,800/µL
2. B360/µL
3. C4,500/µL
4. D450/µL

A patient on digoxin has a calcium of 12.1 mg/dL (3.0 mmol/L) and new nausea and a slow pulse. Why is the calcium result important?

1. AHigh calcium only matters if the potassium is also high
2. BHigh calcium increases the risk of digoxin toxicity
3. CHigh calcium blocks digoxin, so the drug stops working
4. DHigh calcium makes the kidneys clear digoxin faster