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

Which type of white blood cell is normally the most numerous in an adult's blood?

1. AEosinophils
2. BMonocytes
3. CLymphocytes
4. DNeutrophils

In a healthy adult, the CSF glucose is usually about what proportion of the blood glucose?

1. AExactly the same (100%)
2. BAbout one tenth (10%)
3. CAbout double (200%)
4. DAbout two-thirds (60%)

A serum sodium of 151 mEq/L is called:

1. AHypernatremia
2. BHypercalcemia
3. CHyperkalemia
4. DHyponatremia

A patient is scheduled for a liver biopsy. Which laboratory results should the nurse check before the procedure?

1. APlatelet count and PT/INR
2. BTSH and free T₄
3. CSerum sodium and chloride
4. DHbA1c and lipid panel

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. BTourniquet time affects only the glucose result, not the potassium
3. CThe result confirms true hyperkalemia and needs no further checking
4. DThe result may be falsely high and should be repeated with better technique

A patient takes high-dose furosemide. Besides potassium, which electrolyte is most commonly lowered?

1. AUric acid
2. BSodium bicarbonate
3. CPhosphate
4. DMagnesium

Tối sau phẫu thuật, hemoglobin của người bệnh giảm từ 12,5 g/dL xuống 8,1 g/dL (125 xuống 81 g/L) và nhịp tim là 118 lần/phút. Vấn đề nhiều khả năng nhất là gì?

1. AChảy máu
2. BMất nước
3. CPha loãng bình thường sau phẫu thuật, không cần can thiệp
4. DTình trạng đang cải thiện

Ten days after chemotherapy, a patient has a platelet count of 9 × 10³/µL and reports a sudden severe headache and blurred vision. What is the priority?

1. ADim the lights and encourage rest, as headaches are common after chemotherapy
2. BAssess neurological status and report it at once as possible brain bleeding
3. CEncourage the patient to drink more fluids and check the blood pressure later
4. DGive acetaminophen (paracetamol) for the headache and reassess in 1 hour