Лабораторные показатели и электролиты: лист заданий с ответами

In iron-deficiency anemia, the transferrin saturation is usually:

1. AHigh
2. BLow
3. CNormal
4. DVariable

What is a typical adult reference range for serum bicarbonate (total CO₂) on a metabolic panel?

1. AAbout 22–28 mEq/L
2. BAbout 8–12 mEq/L
3. CAbout 98–106 mEq/L
4. DAbout 35–45 mEq/L

Каков общепринятый терапевтический диапазон дигоксина в сыворотке?

1. AОколо 20–40 ng/mL
2. BОколо 0,5–2,0 ng/mL
3. CОколо 10–20 ng/mL
4. DОколо 0,05–0,2 ng/mL

A patient taking phenazopyridine for bladder pain has bright orange urine. What should the nurse know about urine tests?

1. AThe dye can interfere with dipstick color readings
2. BThe color shows severe liver failure is present
3. CThe drug improves the accuracy of all dipsticks
4. DThe color proves blood is present in the urine

A patient with an upper gastrointestinal bleed has a BUN of 48 mg/dL (urea 17 mmol/L) and a normal creatinine. What is the most likely explanation?

1. AThe liver has stopped making urea because of the bleeding
2. BDigested blood adds protein, which the liver turns into urea
3. CSkeletal muscle is breaking down because of the blood loss
4. DThe kidneys have suddenly lost most of their function

A patient with hyperkalemia received IV regular insulin with dextrose. Which result must the nurse monitor closely over the next hours?

1. ASerum calcium, because it falls sharply
2. BSerum sodium, because it rises quickly
3. CHemoglobin, because insulin causes red cell loss
4. DBlood glucose, because hypoglycemia can occur

A patient receiving chemotherapy has a white cell count of 1,8 × 10³/µL with 20% neutrophils and 5% bands. What is the absolute neutrophil count (ANC)?

1. A4,500/µL
2. B360/µL
3. C450/µL
4. D1,800/µL

A healthy woman at 10 weeks of pregnancy has a slightly low TSH with a normal free T₄ and no symptoms. What is the most likely explanation?

1. AhCG stimulates the thyroid in early pregnancy
2. BShe has developed Graves disease in pregnancy
3. CShe has pituitary failure from the pregnancy
4. DThe result shows severe primary hypothyroidism