The nurse is caring for a patient newly diagnosed with hypothyroidism. The patient also takes theophylline to control asthma symptoms. What changes will need to be made to the patient's theophylline dose?
A) Decrease theophylline dosage immediately.
B) Increase theophylline dosage immediately.
C) Increase theophylline dose when normal thyroid function returns.
D) Decrease theophylline dose when normal thyroid function returns.
B
Feedback:
Theophylline clearance is decreased in hypothyroid states. As the patient approaches normal thyroid function, theophylline dose may need to be adjusted frequently. As the drug is cleared more quickly, the dosage may need to be increased.
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