The client is vomiting and very dehydrated. Which medication would be most effective in treating the nausea and vomiting?

Diphenhydramine

Famotidine

Omeprazole

Ondansetron

Answer and Explanation

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.

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Correct Answer is A

Explanation

A. Chloride level would be decreased: Metabolic alkalosis is often associated with hypochloremia, especially when caused by vomiting or diuretics. However, hypokalemia is more clinically significant.

B. Sodium level would be elevated: Sodium levels are not directly affected by metabolic alkalosis.

C. Magnesium level would be elevated: Magnesium levels are not significantly altered in metabolic alkalosis.

D. Potassium level would be decreased: A bicarbonate level of 30 mEq/L indicates metabolic alkalosis. In alkalosis, hydrogen ions shift out of the cells, and potassium moves into the cells, leading to hypokalemia.

A. 0.45% sodium chloride B. 0.9% sodium chloride C. Lactated Ringers D. Albumin

Correct Answer is {"A":{"answers":"A"},"B":{"answers":"B"},"C":{"answers":"B"},"D":{"answers":"C"}}

Explanation

Solutions	Hypotonic	Isotonic	Hypertonic
0.45% sodium chloride	✅
0.9% sodium chloride		✅
Lactated Ringers		✅
Albumin			✅

0.45% Sodium Chloride (Hypotonic): Has lower osmolarity than blood, causing fluid to shift into cells, making them swell. Used for dehydration and intracellular rehydration.

0.9% Sodium Chloride (Isotonic): Has the same osmolarity as blood, so it stays in the intravascular space. Used for fluid resuscitation (hypovolemia, dehydration, shock).

Lactated Ringers (Isotonic): Contains electrolytes (Na+, K+, Ca2+, lactate), making it ideal for burns, surgery, and trauma patients. Maintains intravascular volume without fluid shifts.

Albumin (Hypertonic): Large protein that pulls fluid into the intravascular space (colloid osmotic pressure). Used for hypovolemia, burns, or severe hypoalbuminemia.

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The client is vomiting and very dehydrated. Which medication would be most effective in treating the nausea and vomiting?

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Naxlex Comprehensive Predictor Exams

The nurse is looking at a set of ABG's and notices a bicarbonate level of 30. What other change would the nurse expect to see in their lab values?

Correct Answer is A

Explanation

The nurse is reviewing IV solutions to identify which solution falls under which category.

Correct Answer is {"A":{"answers":"A"},"B":{"answers":"B"},"C":{"answers":"B"},"D":{"answers":"C"}}

Explanation

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