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Which of the following medications is an antiemetic agent?

A.

sucralfate

B.

bisacodyl

C.

omeprazole

D.

prochlorperazine

Answer and Explanation

The Correct Answer is D

A. sucralfate: Sucralfate is a gastrointestinal protectant used to treat and prevent ulcers by forming a barrier over damaged mucosa. It does not affect the vomiting center or chemoreceptor trigger zone and has no antiemetic properties.

B. bisacodyl: Bisacodyl is a stimulant laxative used to treat constipation by increasing peristalsis and fluid accumulation in the colon. It is not used for nausea or vomiting and has no action on the central nervous system.

C. omeprazole: Omeprazole is a proton pump inhibitor that decreases gastric acid secretion. It is used to manage GERD and peptic ulcers but has no antiemetic effects or influence on the chemoreceptor trigger zone.

D. prochlorperazine: Prochlorperazine is a phenothiazine antiemetic that works by blocking dopamine receptors in the chemoreceptor trigger zone. It is frequently used to manage nausea, vomiting, and vertigo.


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Related Questions

Correct Answer is ["10"]

Explanation

Scheduled dose of Humulin R = 4 units.

Current Blood glucose = 196.

  • Determine the dose from the Medium Dose Sliding Scale based on the blood glucose level.

0-140: 0 units

141-190: 4 units

191-240: 6 units (The client's blood glucose of 196 falls into this range.)

Sliding scale dose = 6 units.

  • Calculate the total units of insulin to administer.

Total units = Scheduled dose + Sliding scale dose

= 4 units + 6 units

= 10 units.

Correct Answer is ["5"]

Explanation

Desired dose per administration = 20 mg.

  • Determine the number of administrations in 24 hours.

"twice a day," which means 2 administrations in 24 hours.

  • Calculate the total milligrams administered in 24 hours.

Total mg in 24 hours = 20 mg/dose × 2 doses/day

= 40 mg/day.

Available concentration = 40 mg/5 mL.

  • Calculate the total milliliters to be given in 24 hours.

Volume (mL) = Total mg in 24 hours / (Available concentration (mg) / Available volume (mL))

= 40 mg / (40 mg / 5 mL)

= 40 mg / 8 mg/mL

= 5 mL.

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