Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

What does the red cell distribution width (RDW) describe?

1. AHow fast the red cells settle in a tube
2. BHow much the red cells vary in size
3. CHow many red cells are young cells
4. DHow long red cells survive in the blood

In a standard 2-hour oral glucose tolerance test, what does the patient do?

1. AEats a normal meal, and glucose is checked once later that evening
2. BReceives an insulin injection, and glucose is checked each hour
3. CFasts for 3 days, and glucose is checked every morning before breakfast
4. DDrinks a measured glucose solution, and glucose is checked 2 hours later

Where does most of the ammonia in the blood come from, and which organ removes it?

1. AFat breakdown in adipose tissue; removed by the lungs
2. BProtein breakdown by gut bacteria; removed by the liver
3. CGlucose breakdown in muscle; removed by the pancreas
4. DRed cell breakdown in the spleen; removed by the skin

A woman who is 30 weeks pregnant has a new blood pressure of 152/98 mm Hg. Which urine finding would most support preeclampsia?

1. ANitrites in the urine
2. BProtein in the urine
3. CGlucose in the urine
4. DKetones in the urine

L'emoglobina di un paziente è 7,8 g/dL (78 g/L). Quali reperti si aspetterebbe l'infermiere?

1. AFrequenza cardiaca lenta, cute arrossata e pressione arteriosa alta
2. BMal di testa, epistassi e viso arrossato
3. CPrurito, cute gialla e urine scure
4. DStanchezza, pallore, frequenza cardiaca elevata e affanno da sforzo

Dopo un intervento all'ipofisi, un paziente emette circa 400 mL di urina chiara all'ora con un peso specifico di 1,002, e il sodio è salito a 149 mEq/L. Quale condizione è più probabile?

1. AIperglicemia con chetoacidosi
2. BDiabete insipido
3. CSIADH
4. DDanno renale acuto con oliguria

A patient on high-dose dexamethasone has a white cell count of 15 × 10³/µL, mostly mature neutrophils with no bands. They have no fever and no signs of infection. What is the most likely explanation?

1. AA laboratory error, because steroids always lower the white count
2. BCertain sepsis that needs antibiotics started without delay
3. CA new leukemia that is confirmed by this result alone
4. DA steroid effect that moves neutrophils into the circulating blood

A woman with preeclampsia is receiving IV magnesium sulfate. Her urine output has fallen and her creatinine is rising. Why is this a concern?

1. AMagnesium is broken down by the liver, so it will stop working soon
2. BMagnesium is excreted by the kidneys, so it can build up to toxic levels
3. CPoor kidney function makes the magnesium level fall quickly
4. DMagnesium causes potassium loss, so the kidneys release more fluid