Phiếu bài tập Giá trị xét nghiệm và điện giải có đáp án

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

1. ANormal
2. BLow
3. CHigh
4. DAbsent

What is the usual target INR for a patient taking warfarin for a deep vein thrombosis?

1. A0,8–1,2
2. B2,0–3,0
3. C4,0–5,0
4. D1,0–1,5

What does a creatinine clearance measured from a 24-hour urine collection estimate?

1. AThe amount of protein lost from the blood
2. BThe rate of red cell production
3. CThe glomerular filtration rate
4. DThe concentrating ability of the urine

A nurse has a needlestick injury from a patient with unknown HIV status. Which test is usually done for the nurse as soon as possible?

1. AA serum lipase test
2. BA thyroid panel test
3. CA baseline HIV test
4. DA sweat chloride test

Which change in clotting tests is normal in late pregnancy?

1. AFibrinogen and D-dimer rise
2. BaPTT doubles from baseline
3. CINR rises to about 3,0
4. DPlatelets rise above 600 × 10³/µL

Bộ phát hiện nào phù hợp với tăng calci máu?

1. AChỉ sóng T nhọn và yếu cơ
2. BCo cứng, chuột rút cơ và dấu hiệu Chvostek dương tính
3. CTáo bón, mệt mỏi, lú lẫn và sỏi thận
4. DKhát kèm nước tiểu rất loãng là dấu hiệu duy nhất

A 68-year-old man has fatigue, a hemoglobin of 9,8 g/dL (98 g/L), an MCV of 72 fL and a low ferritin. He eats a normal diet. What is the most important next step?

1. ALook for a source of blood loss in the gut
2. BRepeat the blood count in one year
3. CGive iron and do no further tests at all
4. DStart vitamin B₁₂ injections

A woman with preeclampsia is receiving IV magnesium sulfate. Her urine output has fallen and her creatinine is rising. Why is this a concern?

1. AMagnesium is excreted by the kidneys, so it can build up to toxic levels
2. BMagnesium causes potassium loss, so the kidneys release more fluid
3. CMagnesium is broken down by the liver, so it will stop working soon
4. DPoor kidney function makes the magnesium level fall quickly