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.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Administering the granules mixed with 20 oz of water is not necessary. Montelukast granules can be administered directly into the mouth or mixed with a small amount of soft food (e.g., applesauce) if necessary. The specific instructions for administration should be provided by the healthcare provider or included in the product labeling.
B.If you’re using it to prevent breathing problems related to exercise, take a single dose at least 2 hours before exercising. However, another dose cannot be taken within 24 hours.
C.Montelukast is a leukotriene receptor antagonist commonly used for the maintenance treatment of asthma in children and adults. The usual recommended dose is once daily in the evening, depending on the specific instructions from the healthcare provider.
D. Administering the medication at the onset of wheezing is not the recommended approach. Montelukast is a daily maintenance medication for asthma and should be taken regularly as prescribed, regardless of wheezing symptoms. It is not intended to be used for immediate relief of wheezing or acute asthma symptoms. Short-acting bronchodilators are typically used for quick relief of wheezing or acute asthma symptoms.
Correct Answer is B
Explanation
The Parasympathetic Nervous System utilizes the neurotransmitter acetylcholine. Acetylcholine is released by the postganglionic neurons of the parasympathetic nervous system and acts on target organs and tissues to elicit parasympathetic responses. It plays a crucial role in regulating various bodily functions, including digestion, heart rate, respiratory rate, and other rest and digestion activities.

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