Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

Qual è un tipico intervallo di riferimento negli adulti per il fosfato sierico?

1. ACirca 8,5–10,5 mg/dL (2,1–2,6 mmol/L)
2. BCirca 5,5–7,5 mg/dL (1,8–2,4 mmol/L)
3. CCirca 2,5–4,5 mg/dL (0,8–1,5 mmol/L)
4. DCirca 0,5–1,5 mg/dL (0,2–0,5 mmol/L)

La neutropenia è di solito definita come una conta assoluta dei neutrofili (ANC) inferiore a circa:

1. A1,5 × 10³/µL (1500/mm³)
2. B150 × 10³/µL (150 000/mm³)
3. C15 × 10³/µL (15 000/mm³)
4. D5,0 × 10³/µL (5000/mm³)

Which blood test is the usual measure of a person's vitamin D status?

1. ASerum phosphate
2. B25-hydroxyvitamin D
3. CParathyroid hormone
4. D1,25-dihydroxyvitamin D

A tired patient with heavy menstrual periods has a normal hemoglobin and MCV but a ferritin of 8 ng/mL. What does this show?

1. AVitamin B₁₂ deficiency anemia
2. BIron deficiency without anemia yet
3. CA completely normal iron status
4. DIron overload from too much iron

La conta dei globuli bianchi di un paziente è 16 × 10³/µL con un'alta proporzione di neutrofili immaturi (forme a bastoncello). Che cosa indica più probabilmente?

1. AUn risultato normale
2. BUn'infezione batterica acuta
3. CAnemia da carenza di ferro
4. DSolo una malattia virale cronica

A patient is starting atorvastatin. Which laboratory test is usually checked at baseline?

1. ASerum lipase
2. BBlood cultures
3. CLiver enzymes
4. DThyroid antibodies

A patient on digoxin has a calcium of 12,1 mg/dL (3,0 mmol/L) and new nausea and a slow pulse. Why is the calcium result important?

1. AHigh calcium blocks digoxin, so the drug stops working
2. BHigh calcium makes the kidneys clear digoxin faster
3. CHigh calcium increases the risk of digoxin toxicity
4. DHigh calcium only matters if the potassium is also high

A patient has fatigue, weight gain and constipation. Results: TSH 24 mIU/L, free T₄ low, total cholesterol 285 mg/dL (7,4 mmol/L), sodium 131 mEq/L. What is the best interpretation?

1. APrimary hypothyroidism, which can raise lipids and lower sodium
2. BSecondary hypothyroidism from failure of the pituitary gland
3. CFamilial hypercholesterolemia, unrelated to the thyroid results
4. DHyperthyroidism, with suppressed thyroid hormone production