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

A raised neutrophil count (neutrophilia) is most typical of:

1. AAcute bacterial infection
2. BVitamin B₁₂ deficiency
3. CHay fever and asthma
4. DA mild viral cold

What is the purpose of a type and crossmatch before a transfusion?

1. ATo find out how quickly the patient's blood forms a clot
2. BTo measure how much iron is stored in the patient's bone marrow
3. CTo test the donor blood for bacterial contamination only
4. DTo check that donor blood is compatible with the patient's blood

Thrombocytopenia is usually defined as a platelet count below:

1. A1,000 × 10³/µL (1,000 × 10⁹/L)
2. B150 × 10³/µL (150 × 10⁹/L)
3. C450 × 10³/µL (450 × 10⁹/L)
4. D15 × 10³/µL (15 × 10⁹/L)

A patient with type 1 diabetes has the flu, is eating little and has a glucose of 290 mg/dL (16,1 mmol/L). Which advice is correct?

1. AKeep taking insulin and check blood or urine ketones
2. BWait 3 days before checking the glucose again
3. CStop all insulin until you are eating normally again
4. DDrink only water and avoid all carbohydrate foods

When do the blood counts usually reach their lowest point (nadir) after many standard chemotherapy regimens?

1. AOn the same day as treatment
2. BAbout 6 months after treatment
3. CWithin 1–2 hours of treatment
4. DAbout 7–14 days after treatment

How should a blood sample for serum ammonia be handled?

1. AKept warm and sent with the next routine batch
2. BPlaced on ice and sent to the laboratory at once
3. CLeft at room temperature for several hours first
4. DShaken firmly to mix it before it is sent away

A patient's low calcium does not improve despite several days of calcium replacement. Which other electrolyte should be checked and corrected?

1. AChloride
2. BSodium
3. CMagnesium
4. DBicarbonate

A patient with chronic kidney disease stage 4 has a high phosphate, a low-normal calcium and a very high parathyroid hormone (PTH). What does this show?

1. AHypoparathyroidism after neck surgery
2. BVitamin D toxicity from supplements
3. CSecondary hyperparathyroidism from CKD
4. DPrimary hyperparathyroidism from a tumor