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

Khoảng tham chiếu điển hình ở người lớn của số lượng tiểu cầu là bao nhiêu?

1. AKhoảng 150–400 × 10³/µL (150–400 × 10⁹/L)
2. BKhoảng 1000–2000 × 10³/µL (1000–2000 × 10⁹/L)
3. CKhoảng 4,5–11 × 10³/µL (4,5–11 × 10⁹/L)
4. DKhoảng 12–16 × 10³/µL (12–16 × 10⁹/L)

Khoảng tham chiếu điển hình của độ thẩm thấu huyết thanh là bao nhiêu?

1. AKhoảng 275–295 mOsm/kg
2. BKhoảng 135–145 mOsm/kg
3. CKhoảng 400–500 mOsm/kg
4. DKhoảng 50–100 mOsm/kg

Which sample is commonly used to screen a patient for MRSA carriage on admission?

1. AA clean-catch midstream urine sample
2. BA blood culture from one arm
3. CA swab from the front of the nose
4. DA sample of stool sent for culture

A patient has a hot, swollen big toe. The serum uric acid is normal. Which statement is correct?

1. AGout can only be diagnosed with a CT scan of the foot
2. BGout is ruled out, as uric acid is always high in an attack
3. CGout is certain, as a normal urate proves the diagnosis
4. DGout is still possible, as urate can be normal in an attack

An older adult with chronic kidney disease takes glyburide (glibenclamide, a sulfonylurea) and has repeated low glucose readings. Why is this a concern?

1. AThe drug stops working entirely when the kidneys fail
2. BThe drug causes high potassium that lowers the glucose
3. CThe drug and its metabolites build up and cause long lows
4. DThe drug makes the glucose meter read falsely low

A patient is on an IV insulin infusion protocol in the ICU. How often is the blood glucose usually checked?

1. AOnce every 12 hours
2. BOnce a day before breakfast
3. COnly if symptoms occur
4. DAbout every hour

The nurse teaches a patient about the HbA1c test. Which statement shows a need for further teaching?

1. A"My daily finger-stick readings still matter between the tests"
2. B"I must not eat anything for 12 hours before the HbA1c test"
3. C"A lower result means less risk of damage to my eyes and kidneys"
4. D"The test shows my average glucose over the past few months"

A patient with kidney stones and fatigue has a calcium of 11,6 mg/dL (2,9 mmol/L), a high parathyroid hormone (PTH) and a low phosphate. Which condition is most likely?

1. APrimary hyperparathyroidism
2. BHypoparathyroidism
3. CCancer-related hypercalcemia
4. DVitamin D deficiency