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 B

Explanation

A. pH 7.30, PaCO₂ 38, HCO₃ 15: Metabolic acidosis (low HCO₃, normal PaCO₂).

B. pH 7.32, PaCO₂ 56, PO₂ 84, HCO₃ 26: The client has respirations of 8/min, which indicates hypoventilation → CO₂ retention → respiratory acidosis. pH 7.32 indicates acidosis. PaCO₂ 56 mmHg - Elevated CO₂ (hypercapnia), confirming respiratory acidosis. HCO₃ 26- Normal bicarbonate suggests that compensation has not yet occurred

C. pH 7.37, PaCO₂ 45, HCO₃ 24: Normal ABG values.

D. pH 7.48, PaCO₂ 32, HCO₃ 22: Respiratory alkalosis (low PaCO₂ due to hyperventilation, not hypoventilation).

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 client has just returned from OR with respirations of 8 per minute. What set of ABG's would the nurse expect to see?

Correct Answer is B

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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