Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

A positive hepatitis B surface antigen (HBsAg) test means:

1. AThe person had hepatitis A in the past
2. BThe person is immune from vaccination only
3. CThe person currently has hepatitis B infection
4. DThe person has never met the virus

What is a typical reference range for urine specific gravity in an adult?

1. AAbout 1,100–1,300
2. BAbout 1,040–1,060
3. CAbout 1,005–1,030
4. DAbout 0,900–0,990

Qual è un tipico intervallo di riferimento negli adulti per la creatinina sierica?

1. ACirca 0,6–1,2 mg/dL
2. BCirca 135–145 mg/dL
3. CCirca 10–20 mg/dL
4. DCirca 3,5–5,0 mg/dL

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

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

How does normal pregnancy usually affect serum creatinine?

1. AIt rises, because GFR falls
2. BIt rises with every week
3. CIt stays exactly the same
4. DIt falls, because GFR rises

When is a peak level for an IV aminoglycoside such as gentamicin usually drawn?

1. AAt any time convenient for the patient
2. BAbout 30 minutes after the infusion ends
3. CJust before the next dose is started
4. DExactly 24 hours after the first dose

The nurse prepares a patient for a 2-hour oral glucose tolerance test tomorrow morning. Which statement shows a need for further teaching?

1. A"I'll fast overnight but can drink plain water"
2. B"I can have a light breakfast before the test"
3. C"I'll stay seated during the test if I can"
4. D"I'll avoid smoking until the test is over"

Un paziente con iponatriemia cronica (sodio 118 mEq/L) è in trattamento. Perché il sodio deve essere aumentato lentamente?

1. ALa correzione lenta serve solo a ridurre i costi ospedalieri
2. BUna correzione rapida causa ipokaliemia, che è l'unico rischio
3. CPuò causare demielinizzazione osmotica, una grave lesione cerebrale
4. DUna correzione rapida fa calare di nuovo il sodio ancora di più