A nurse is providing discharge instructions to a client who has asthma and is about to start taking theophylline (Theo-24). The nurse should tell the client that this medication might cause which of the following adverse effects?
Constipation
Oliguria
Drowsiness
Dysrhythmias
The Correct Answer is D
Theophylline is a bronchodilator medication used in the treatment of asthma and other respiratory conditions. It works by relaxing the smooth muscles in the airways, allowing for easier breathing. However, theophylline is associated with potential adverse effects, and one of the most significant concerns is its potential to cause dysrhythmias (irregular heart rhythms).
Dysrhythmias can include tachycardia (rapid heart rate), atrial fibrillation, or other disturbances in heart rhythm.
Constipation is not a commonly reported adverse effect of theophylline. Oliguria (decreased urine output) is not typically associated with theophylline use. Drowsiness can occur with theophylline, but dysrhythmias are considered a more significant and potentially serious adverse effect. It is crucial for the nurse to educate the client about the potential for dysrhythmias and advise them to report any irregular heartbeat or other cardiac symptoms promptly.

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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The nurse will tell the patient that second-generation antihistamines are generally considered safer than first-generation antihistamines during pregnancy. While the safety of medications during pregnancy is a complex topic and individualized recommendations should be obtained from a healthcare provider, second-generation antihistamines such as loratadine (Claritin) and cetirizine (Zyrtec) are often preferred over first-generation antihistamines like diphenhydramine (Benadryl) due to their lower potential for sedation and other side effects. However, it is still important for the patient to consult with her healthcare provider for personalized advice on medication use during pregnancy.
Correct Answer is C
Explanation
Montelukast is a leukotriene receptor antagonist commonly used to manage asthma and allergic rhinitis. Its primary therapeutic effect is to improve respiratory symptoms by reducing inflammation and constriction of the airways. Therefore, an increased ease of breathing would be an expected outcome indicating that the medication is working effectively.
The other options are incorrect because:
A. The client's seizure threshold is reduced: Montelukast does not have any effect on the seizure threshold. This outcome is unrelated to the medication and may be indicative of a different condition or treatment.
B. The client experiences less muscle pain: Montelukast is not indicated for reducing muscle pain. This outcome is unrelated to the medication and may be indicative of a different condition or treatment.
D. The client's platelet count is increased: Montelukast does not have an effect on platelet count. This outcome is unrelated to the medication and may be indicative of a different condition or treatment.

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