The client is 34 years old and has recently started taking theophylline.
The nurse knows that medication teaching has been successful when the client agrees to what activity?
Eating foods high in potassium.
Avoiding beverages that contain caffeine.
Taking the medication on an empty stomach.
Limiting fluid intake to 1,000 mL a day.
The Correct Answer is B
Theophylline is a bronchodilator that is used to treat asthma and COPD.
It works by relaxing the smooth muscles of the airways and increasing airflow to the lungs.
However, theophylline has a narrow therapeutic range and can cause side effects such as nausea, vomiting, insomnia, tremors, and cardiac arrhythmias if the blood level is too high.
Caffeine is a stimulant that can increase the effects of theophylline and raise the risk of toxicity.
Therefore, patients taking theophylline should avoid caffeine-containing beverages such as coffee, tea, cola, and energy drinks.
Choice A is wrong because eating foods high in potassium has no effect on theophylline metabolism or action.
Potassium is an electrolyte that is important for nerve and muscle function, but it does not interact with theophylline.
Choice C is wrong because taking the medication on an empty stomach can increase the absorption of theophylline and cause gastric irritation.
Theophylline should be taken with food or milk to reduce stomach upset and prevent fluctuations in blood levels.
Choice D is wrong because limiting fluid intake to 1,000 mL a day can cause dehydration and increase the concentration of theophylline in the blood.
Theophylline
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The nurse should advise the client to avoid aluminum salts because they can increase the risk of aluminum toxicity when taken with sucralfate. Sucralfate forms a protective coating over the ulcer and binds to aluminum in the stomach.
Choice A is wrong because Milk of Magnesia is a magnesium-based antacid that can cause diarrhea, but does not interact with sucralfate.
Choice B is wrong because Calcium carbonate is a calcium-based antacid that can cause constipation, but does not interact with sucralfate.
Choice D is wrong because Proton pump inhibitors are drugs that reduce the production of stomach acid and can help heal ulcers.
They do not interact with sucralfate.
Correct Answer is C
Explanation
This is because aprepitant can cause dehydration as an adverse effect, so the nurse will want to encourage the client to drink as much liquid as possible.
Choice A is wrong because the client’s temperature would not be affected by aprepitant.
Choice B is wrong because the client must be encouraged for fluid intake as tolerated, so placing an NPO sign on the door would not be appropriate for this client.
Choice D is wrong because elevating the head of the bed would be unnecessary for a client receiving aprepitant.
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