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

What does a raised D-dimer level show?

1. AThe patient is taking too much warfarin
2. BThe liver is no longer able to make clotting factors
3. CThe platelet count is too low to stop bleeding
4. DFibrin clots are being formed and broken down in the body

Ở người không dùng thuốc chống đông, INR điển hình khoảng:

1. A0,8–1,2
2. B2,0–3,0
3. C5,0–6,0
4. D3,5–4,5

What is the main role of platelets?

1. ATo carry oxygen and carbon dioxide in the blood
2. BTo form a plug at the site of vessel injury
3. CTo break down old red cells in the spleen
4. DTo produce antibodies against bacteria and viruses

A breathless patient in the emergency department has a BNP below 100 pg/mL. What does this suggest?

1. AThe kidneys are failing and the patient needs dialysis
2. BHeart failure is an unlikely cause of the breathlessness
3. CSevere heart failure is certainly the cause of the problem
4. DThe patient has had a myocardial infarction in the past day

A patient taking phenazopyridine for bladder pain has bright orange urine. What should the nurse know about urine tests?

1. AThe color proves blood is present in the urine
2. BThe color shows severe liver failure is present
3. CThe dye can interfere with dipstick color readings
4. DThe drug improves the accuracy of all dipsticks

A patient taking a statin reports new, unexplained muscle pain and weakness. Which laboratory test would the nurse expect to be ordered?

1. ASerum lipase
2. BSerum ammonia
3. CCardiac troponin
4. DCreatine kinase (CK)

A patient's results: sodium 140 mEq/L, chloride 100 mEq/L, bicarbonate 12 mEq/L. What is the anion gap, and what does it suggest?

1. A40 mEq/L, a high anion gap
2. B52 mEq/L, a very high anion gap
3. C28 mEq/L, a high anion gap
4. D12 mEq/L, a normal anion gap

A patient's bedside glucose meter shows "HI" (above its measuring range). The patient is drowsy. What should the nurse do?

1. AAssume the meter is broken and give the usual insulin dose
2. BGive oral glucose in case the reading is wrong and the patient is low
3. CRecord "HI" and repeat the meter test at the next scheduled time
4. DSend a venous sample to the lab and inform the provider at once