Correct Answer: A

Rationale: The correct answer is to administer epinephrine. Epinephrine is the first-line treatment for severe allergic reactions because it rapidly reverses the symptoms of anaphylaxis by constricting blood vessels, increasing heart rate, and relaxing airway muscles. Corticosteroids, although helpful to reduce inflammation, are not the priority in the acute management of severe allergic reactions. Oxygen may be needed to support breathing, but it is not the initial priority. Antihistamines are not as effective as epinephrine in treating severe allergic reactions and should not be the first intervention.

Correct Answer: A

Rationale: The correct answer is Hypokalemia. Diuretics, such as furosemide, commonly cause potassium loss in patients, leading to hypokalemia. This electrolyte imbalance should be closely monitored to prevent complications like cardiac arrhythmias. Hypercalcemia (Choice B) is not typically associated with diuretic use. Hyponatremia (Choice C) involves low sodium levels and can occur in conditions like syndrome of inappropriate antidiuretic hormone secretion (SIADH) but is not directly caused by diuretics. Hypermagnesemia (Choice D) is an excess of magnesium, usually not a common electrolyte imbalance induced by diuretics.

Correct Answer: C

Rationale: A weight gain of 2.3 kg (5 lb) in 1 week can indicate worsening preeclampsia due to fluid retention, which can lead to serious complications. This finding should be reported promptly to the provider for further assessment and intervention. Blood pressure of 140/90 mm Hg is high but may not be an immediate concern for a client with preeclampsia at 30 weeks. 1+ pitting edema in the lower extremities is common in pregnancy, especially in the third trimester, and may not be a significant finding in isolation. A mild headache can be a common symptom in pregnancy and may not be indicative of worsening preeclampsia unless accompanied by other concerning signs.

Correct Answer: C

Rationale: The correct answer is to monitor potassium levels when a patient is receiving furosemide because furosemide can cause potassium depletion. It is essential to monitor potassium levels to prevent complications such as hypokalemia. While monitoring urine output is important in assessing kidney function, and monitoring blood pressure and serum creatinine are relevant in certain situations, the priority when administering furosemide is to monitor potassium levels due to the medication's potential to deplete potassium.

Correct Answer: B

Rationale: Performing a neurological assessment is the appropriate nursing intervention for a patient experiencing a suspected stroke. This assessment helps determine the severity of the stroke, identify potential deficits, and guide further interventions. Administering thrombolytics (Choice A) should only be done after a CT scan to confirm the type of stroke and rule out hemorrhagic stroke. Performing a CT scan (Choice C) is important but is typically done after stabilizing the patient. Administering oxygen (Choice D) is essential to maintain adequate oxygenation, but performing a neurological assessment takes precedence in the immediate management of a suspected stroke.