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

Why is serum creatinine a better marker of kidney function than BUN?

1. AIt is affected mainly by protein intake, which is easy to control
2. BIt is made by the liver, so it rises in every kind of illness
3. CIt is less affected by diet, hydration and bleeding in the gut
4. DIt is not filtered by the kidneys, so its level stays very stable

Cation chính trong dịch bên trong tế bào là gì?

1. ACalci
2. BClorua
3. CKali
4. DNatri

In a person with HIV infection, a CD4 count below which level defines AIDS?

1. A200 cells/µL
2. B50 cells/µL
3. C1,000 cells/µL
4. D500 cells/µL

A patient with iron-deficiency anemia started oral iron. Which result is usually the earliest sign that treatment is working?

1. AA rise in the platelet count
2. BA fall in the mean cell volume (MCV)
3. CA fall in the white cell count
4. DA rise in the reticulocyte count

A patient with type 2 diabetes starts prednisone each morning. When is the glucose most likely to be highest?

1. AThe glucose will not change
2. BIn the afternoon and evening
3. CAt midnight only
4. DIn the early morning, before the dose

A patient receiving chemotherapy has an ANC of 300/µL and a new temperature of 38,3 °C (100,9 °F). What should the nurse do first?

1. AGive acetaminophen (paracetamol) and recheck the temperature in 4 hours
2. BReport it at once so cultures and antibiotics start quickly
3. CEncourage oral fluids and record the fever in the chart
4. DRemove extra blankets and offer a tepid sponge bath

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. AVitamin D toxicity from supplements
2. BSecondary hyperparathyroidism from CKD
3. CHypoparathyroidism after neck surgery
4. DPrimary hyperparathyroidism from a tumor

Two sets of blood cultures were taken from separate sites. Only one bottle in one set grows coagulase-negative staphylococci, and the patient has no line or implant. What is the most likely interpretation?

1. AProof that the patient has infective endocarditis
2. BProbable skin contamination of the sample
3. CInfection with a resistant organism such as MRSA
4. DCertain bloodstream infection needing treatment