The client is vomiting and very dehydrated. Which medication would be most effective in treating the nausea and vomiting?
Diphenhydramine
Famotidine
Omeprazole
Ondansetron
The Correct Answer is D
A. Diphenhydramine: An antihistamine used for motion sickness, but not first-line for severe nausea and dehydration.
B. Famotidine: A histamine-2 blocker used for acid reflux, not nausea control.
C. Omeprazole: A proton pump inhibitor for acid suppression, not for nausea and vomiting.
D. Ondansetron: Ondansetron (Zofran) is a serotonin (5-HT3) receptor antagonist that is highly effective for nausea and vomiting, especially in dehydration and severe vomiting.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Hypercalcemia: AKI is typically associated with hypocalcemia because the kidneys fail to convert vitamin D to its active form, reducing calcium absorption.
B. Elevated BUN: AKI leads to impaired renal filtration, causing elevated blood urea nitrogen (BUN) and creatinine levels due to the accumulation of nitrogenous waste.
C. Metabolic alkalosis: AKI usually causes metabolic acidosis, not alkalosis, due to the accumulation of acids (e.g., lactic acid, uremic toxins).
D. Hypokalemia: AKI commonly leads to hyperkalemia due to reduced potassium excretion.
Correct Answer is A
Explanation
A. Cardiac arrest: Cardiac arrest is a complication of severe hypothermia, not a risk factor.
B. Falling through the ice: Major risk factor for accidental hypothermia due to immersion in cold water.
C. Head trauma: Impaired thermoregulation in the brainstem can cause hypothermia.
D. Drug use: Certain drugs (e.g., alcohol, sedatives) impair the body’s ability to regulate temperature, increasing hypothermia risk.
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