A client is taking oxybutynin for overactive bladder and haloperidol (Haldol) for antipsychotic treatment. What possible side effect should the nurse monitor for due to the interaction of these medications?
Hypotension
Lowered plasma concentrations
Increased effect of the antispasmodic drug
Decreased effect of the antipsychotic drug
The Correct Answer is C
A. Hypotension: Hypotension is not a common interaction between oxybutynin and haloperidol.
B. Lowered plasma concentrations: There is no significant interaction that would lead to lowered plasma concentrations of either medication.
C. Increased effect of the antispasmodic drug: Both oxybutynin and haloperidol have anticholinergic properties. When combined, these properties can increase the risk of anticholinergic side effects, such as dry mouth, constipation, and urinary retention, enhancing the effect of oxybutynin.
D. Decreased effect of the antipsychotic drug: There is no evidence that oxybutynin would decrease the effect of haloperidol.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Risk for impaired urinary elimination: Oxybutynin is used to treat urinary urgency, so it is unlikely to impair urinary elimination and may even improve it.
B. Risk for alteration in body image: There is no direct association between oxybutynin use and body image concerns.
C. Risk for alteration in bowel elimination: Oxybutynin can cause constipation, but this is not the highest priority compared to dry mouth.
D. Risk for altered comfort: dry mouth: Dry mouth is a common and bothersome side effect of oxybutynin, making comfort the highest priority concern.
Correct Answer is D
Explanation
A. Fever and chills: Fever and chills are signs of infection and do not contraindicate the use of phenazopyridine, which is used for pain relief in UTI.
B. Burning and pain with urination: These are symptoms of a UTI, and phenazopyridine is used to treat the associated discomfort.
C. Bright orange urine: This is a common side effect of phenazopyridine and does not contraindicate its use.
D. History of renal impairment: Phenazopyridine is contraindicated in patients with renal impairment because it can accumulate in the body, leading to toxicity.
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