Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

Which ECG change is linked to hypercalcemia?

1. AA shortened QT interval
2. BTall, peaked T waves
3. CA prolonged QT interval
4. DProminent U waves

In many US nursing references, what is the commonly cited therapeutic range for serum lithium in maintenance therapy?

1. AAbout 2,0–3,0 mEq/L
2. BAbout 3,5–5,0 mEq/L
3. CAbout 0,6–1,2 mEq/L
4. DAbout 10–20 mEq/L

Which form of bilirubin rises mainly when red cells are broken down faster than normal?

1. AUnconjugated (indirect)
2. BStool bilirubin
3. CUrine bilirubin
4. DConjugated (direct)

A patient with diabetes is found unconscious with a blood glucose of 38 mg/dL (2,1 mmol/L). Which treatment is appropriate?

1. AGlucagon by injection, or IV dextrose as prescribed
2. BGlucose tablets placed between the patient's teeth
3. CA dose of rapid-acting insulin to stabilize the glucose
4. DOrange juice poured slowly into the patient's mouth

Which technique is recommended for a capillary blood glucose test on an adult's finger?

1. APrick the side of the fingertip
2. BPrick the center of the fingertip
3. CSqueeze the finger very hard
4. DUse the same finger every time

A nurse completed the hepatitis B vaccine series. Which result shows protective immunity?

1. AAnti-HBs of 10 mIU/mL or more
2. BA positive HBsAg test
3. CA positive IgM anti-HBc
4. DA raised ALT level

A patient without symptoms has a finger-stick glucose of 340 mg/dL (18,9 mmol/L). The previous values were normal, and the patient has just peeled an orange. What should the nurse do first?

1. AHave the patient wash and dry their hands, then repeat the test
2. BReport the result as a new diagnosis of diabetes mellitus
3. CGive a correction dose of insulin for a glucose of 340 mg/dL
4. DAsk the laboratory to measure HbA1c from the same drop of blood

Which patient's result should the nurse act on first?

1. APlatelets 140 × 10³/µL in a patient with mild chronic liver disease
2. BHemoglobin 9,6 g/dL (96 g/L) in a patient with stable chronic kidney disease
3. CHemoglobin 6,4 g/dL (64 g/L) with new chest pain and a pulse of 124/min
4. DFerritin 15 ng/mL in a well patient with known iron-deficiency anemia on oral iron