A nurse is reviewing the medical history of a client who has myasthenia gravis and is asking about starting neostigmine. The nurse should identify which of the following client conditions as a potential contraindication for cholinesterase inhibitor therapy?
Cataracts
Hypertension
Hypothyroidism
Peptic ulcer disease
The Correct Answer is D
Rationale:
A. Cataracts are not a contraindication for cholinesterase inhibitors like neostigmine.
B. Hypertension is not a direct contraindication for cholinesterase inhibitor therapy, although caution may be exercised depending on the overall health status of the client.
C. Hypothyroidism is not contraindicated for cholinesterase inhibitors; however, it should be managed appropriately.
D. Peptic ulcer disease is a significant contraindication for cholinesterase inhibitors like neostigmine because these medications can increase gastric secretions and motility, potentially exacerbating ulcer conditions and leading to complications.
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Correct Answer is C
Explanation
Rationale:
A. Bradycardia: Albuterol can cause an increase in heart rate (tachycardia) as a common side effect, not a decrease in heart rate, so bradycardia would not be expected.
B. Wheezing: Albuterol is used to relieve wheezing by causing bronchodilation, so continued wheezing after administration would suggest ineffective treatment rather than being an expected finding.
C. Tremors: Tremors are a common side effect of albuterol due to its stimulation of beta-2 receptors in the muscles. This is often seen after nebulizer treatments.
D. Sleepiness: Albuterol generally causes stimulation of the central nervous system, leading to restlessness or nervousness, not sleepiness.
Correct Answer is B
Explanation
Rationale:
A. A decrease in the amount of gastric acid production: Alosetron is not used to decrease gastric acid production. This effect is more associated with medications such as proton pump inhibitors or H2 blockers.
B. A decrease in the frequency of defecation: Alosetron is used to treat irritable bowel syndrome with diarrhea (IBS-D) by reducing bowel movement frequency and improving stool consistency.
C. An increase in gastric motility: Alosetron works by decreasing intestinal motility, which helps reduce diarrhea, not by increasing it.
D. An increase in the absorption of water into the intestine: Alosetron does not specifically increase water absorption into the intestine. Its primary effect is slowing intestinal transit to reduce diarrhea.