1.Dễ
A urine dipstick is positive for nitrites. What does this most likely show?
- ABacteria in the urine that convert nitrate to nitrite
- BRed blood cells leaking from the glomeruli
- CKetones produced from fat breakdown in fasting
- DGlucose spilling into the urine from high blood levels
2.Dễ
What does the red cell distribution width (RDW) describe?
- AHow many red cells are young cells
- BHow much the red cells vary in size
- CHow long red cells survive in the blood
- DHow fast the red cells settle in a tube
3.Dễ
In the US (NCEP ATP III) classification, which LDL cholesterol level is called optimal for an adult?
- ABelow 100 mg/dL (2,6 mmol/L)
- BAbout 160–189 mg/dL (4,1–4,9 mmol/L)
- CAbout 220–260 mg/dL (5,7–6,7 mmol/L)
- DAbout 190 mg/dL (4,9 mmol/L) or more
4.Trung bình
Một người bệnh đã nôn hai ngày có BUN 32 mg/dL (urê 11,4 mmol/L) và creatinine bình thường. Nguyên nhân có khả năng nhất là gì?
- AThừa nước
- BMất nước
- CChế độ ăn ít protein
- DSuy gan
5.Trung bình
A patient has weight loss, tremor and heat intolerance. Which thyroid test pattern fits Graves disease?
- AHigh TSH with a normal free T4
- BHigh TSH with a low free T4
- CLow TSH with a high free T4
- DNormal TSH with a low free T4
6.Trung bình
Which change in clotting tests is normal in late pregnancy?
- AFibrinogen and D-dimer rise
- BaPTT doubles from baseline
- CINR rises to about 3,0
- DPlatelets rise above 600 × 10³/µL
7.Khó
A patient with ongoing hemolytic anemia has an HbA1c of 4,6%, but home glucose readings are often 180–220 mg/dL (10–12 mmol/L). What best explains the gap?
- AShort red cell life span lowers the HbA1c falsely
- BHemolysis makes the HbA1c test read too high
- CThe home glucose meter is reading falsely high
- DThe patient has true, well-controlled diabetes
8.Khó
Which patient's result should the nurse act on first?
- AFerritin 15 ng/mL in a well patient with known iron-deficiency anemia on oral iron
- BPlatelets 140 × 10³/µL in a patient with mild chronic liver disease
- CHemoglobin 9,6 g/dL (96 g/L) in a patient with stable chronic kidney disease
- DHemoglobin 6,4 g/dL (64 g/L) with new chest pain and a pulse of 124/min
Đáp án
- 1. A · Bacteria in the urine that convert nitrate to nitrite
- 2. B · How much the red cells vary in size
- 3. A · Below 100 mg/dL (2,6 mmol/L)
- 4. B · Mất nước
- 5. C · Low TSH with a high free T4
- 6. A · Fibrinogen and D-dimer rise
- 7. A · Short red cell life span lowers the HbA1c falsely
- 8. D · Hemoglobin 6,4 g/dL (64 g/L) with new chest pain and a pulse of 124/min
Lời giải đầy đủ từng bước: hãy luyện chủ đề này trên examproblems.com.