Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

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

1. AHigh
2. BLow
3. CVariable
4. DNormal

Why is glucose normally absent from the urine?

1. AGlucose is changed into ketones before it reaches the urine
2. BThe tubules reabsorb all filtered glucose at normal blood levels
3. CThe glomeruli do not filter glucose out of the blood at any level
4. DThe bladder lining breaks down any glucose that reaches the urine

Which laboratory test best reflects the body's iron stores?

1. ASerum albumin
2. BSerum ferritin
3. CPlatelet count
4. DSerum sodium

Apart from the lithium level, which tests are monitored regularly in long-term lithium therapy?

1. ALiver enzymes and serum amylase
2. BKidney function and thyroid function
3. CTroponin and creatine kinase (CK)
4. DINR and the platelet count

A young adult with new diabetes has a very low C-peptide level. What does this suggest?

1. AThe kidneys are excreting all of the patient's insulin in urine
2. BThe pancreas is making very little insulin, as in type 1 diabetes
3. CThe patient has high insulin resistance, as in type 2 diabetes
4. DThe patient is injecting too much insulin and needs a lower dose

A patient is starting dabigatran, a direct oral anticoagulant. Which laboratory test is most important to review before the first dose?

1. AINR, to set the dose of the anticoagulant
2. BLipase, to rule out an inflamed pancreas first
3. CTSH, to rule out an overactive thyroid gland
4. DKidney function (creatinine clearance)

Dopo un intervento, un paziente che riceve grandi volumi di liquido endovenoso ipotonico sviluppa mal di testa, nausea e confusione. Quale risultato spiega meglio il quadro?

1. AUn calcio di 9,4 mg/dL (2,35 mmol/L)
2. BUn sodio di 126 mEq/L
3. CUn potassio di 4,2 mEq/L
4. DUna glicemia di 110 mg/dL (6,1 mmol/L)

A patient with heavy alcohol use and a poor diet has a hemoglobin of 10,1 g/dL (101 g/L), an MCV of 110 fL and a low red cell folate. Which explanation fits best?

1. AFolate deficiency, made worse by a direct alcohol effect
2. BIron deficiency from slow, chronic bleeding in the gut
3. CThalassemia trait inherited from one of the parents
4. DAnemia caused by long-standing chronic kidney disease