Which serotonin antagonist can be used to relieve nausea and vomiting?

Correct Answer: B

Rationale: The correct answer is B: ondansetron (Zofran). Ondansetron is a selective serotonin receptor antagonist that effectively targets the serotonin receptors in the chemoreceptor trigger zone to relieve nausea and vomiting. It is commonly used in chemotherapy-induced nausea and vomiting. A: Metoclopramide is a dopamine receptor antagonist and primarily used for gastrointestinal motility disorders, not specifically for nausea relief. C: Hydroxyzine is an antihistamine with sedative properties, primarily used for anxiety and itching, not specifically for nausea relief. D: Prochlorperazine is a dopamine receptor antagonist primarily used for treating psychotic disorders, not specifically for nausea relief. In summary, ondansetron is the correct choice as it targets serotonin receptors specifically for relieving nausea and vomiting, whereas the other options focus on different mechanisms of action.

Correct Answer: D

Rationale: The correct answer is D: sodium chloride. Intestinal suctioning in a client with an ileus leads to loss of fluids rich in sodium chloride. This loss can result in electrolyte imbalances and dehydration. Calcium (A), magnesium (B), and potassium (C) are not typically lost in significant amounts through intestinal suctioning in the context of an ileus. Therefore, sodium chloride is the most likely electrolyte to be lost in this scenario.

Correct Answer: B

Rationale: The correct answer is B: Use a bath blanket for warmth and privacy. This is important when making an occupied bed to ensure the comfort and dignity of the patient. The bath blanket provides warmth and privacy during the bed-making process, maintaining the patient's comfort and respecting their privacy. Keeping the bed in a low position (choice A) is important for safety but not directly related to the patient's comfort during bed-making. Constantly raising side rails (choice C) is unnecessary and may cause discomfort to the patient. Moving back and forth between sides (choice D) is not essential for making an occupied bed and may disrupt the process.

Correct Answer: C

Rationale: The correct answer is C: Glucose. Total Parenteral Nutrition (TPN) is a form of nutrition delivered directly into the bloodstream, providing all essential nutrients including glucose. Monitoring glucose levels is crucial to prevent hyperglycemia or hypoglycemia. Calcium (A), Magnesium (B), and Cholesterol (D) are not typically monitored closely when a client is on TPN, as they are not directly impacted by TPN administration. Calcium and Magnesium levels are usually monitored for other conditions, and Cholesterol levels are not typically affected by TPN administration.

Correct Answer: C

Rationale: The correct answer is C: Chocolate. Chocolate is known to trigger heartburn in individuals with GERD due to its high fat content and caffeine. Fat relaxes the lower esophageal sphincter, allowing stomach acid to flow back up the esophagus, leading to heartburn. Caffeine can also relax the sphincter and trigger acid reflux. Lettuce (A) and eggs (B) are generally well-tolerated and do not commonly trigger heartburn. Butterscotch (D) may be high in fat and sugar, but it is less likely to cause heartburn compared to chocolate.