The nurse is caring for a client newly diagnosed with hypothyroidism. The client also takes theophylline to control asthma symptoms.
What change may need to be made to the client’s theophylline dose?

Decrease theophylline dosage immediately.

Decrease theophylline dose when normal thyroid function returns.

Discontinue the client’s theophylline.

Increase theophylline dosage immediately.

Answer and Explanation

The Correct Answer is B

This is because hypothyroidism can reduce the metabolism and clearance of theophylline, leading to higher serum levels and increased risk of toxicity. Therefore, when the thyroid function is restored by levothyroxine or liothyronine, the dose of theophylline may need to be lowered to avoid excessive effects.

Choice A is wrong because decreasing theophylline dosage immediately may result in suboptimal control of asthma symptoms.

The dose adjustment should be based on serum theophylline levels and clinical response.

Choice C is wrong because discontinuing the client’s theophylline may cause worsening of asthma and potentially life-threatening complications.

Theophylline is an important bronchodilator that should not be stopped abruptly without medical supervision.

Choice D is wrong because increasing theophylline dosage immediately may cause overdose and adverse effects such as nausea, vomiting, headache, tachycardia, arrhythmias, seizures and even death.

The dose of theophylline should be carefully titrated according to serum levels and clinical response.

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Correct Answer is A

Explanation

This is because somatropin is a growth hormone that can cause slipped capital femoral epiphysis, a condition where the head of the femur slips off the neck of the bone and causes severe pain and disability. The prescriber should be notified immediately if this occurs.

Choice B is wrong because upper respiratory infection lasting more than 6 days is not a serious adverse effect of somatropin and does not require immediate attention from the prescriber.

Choice C is wrong because dry skin accompanied by pruritus is not a common or serious side effect of somatropin and may be due to other causes.

Choice D is wrong because nosebleeds are not a common or serious side effect of somatropin and may be due to other causes.

Normal ranges for growth hormone levels are 0.4 to 10 ng/mL for males and 1 to 14 ng/mL for females.

A. Monitoring the client for increased bruising. B. Assessing for signs and symptoms of infection. C. Assessing the client’s level of consciousness. D. Monitoring the client’s electrolyte levels.

Correct Answer is A

Explanation

This is because levothyroxine can increase the anticoagulant effect of oral anticoagulants and increase the risk of bleeding. The nurse should check the client’s prothrombin time and international normalized ratio (INR) regularly and report any abnormal values to the prescriber.

Choice B is wrong because hypothyroidism does not increase the risk of infection.

Choice C is wrong because hypothyroidism does not affect the level of consciousness unless it is severe and causes myxedema coma.

Choice D is wrong because hypothyroidism does not cause electrolyte imbalances.

Normal ranges for prothrombin time are 11 to 13.5 seconds and for INR are 0.8 to 1.22.

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The nurse is caring for a client newly diagnosed with hypothyroidism. The client also takes theophylline to control asthma symptoms. What change may need to be made to the client’s theophylline dose?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

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The nurse is caring for a client newly diagnosed with hypothyroidism. The client also takes theophylline to control asthma symptoms. What change may need to be made to the client’s theophylline dose?

The nurse is caring for a client newly diagnosed with hypothyroidism. The client also takes theophylline to control asthma symptoms.
What change may need to be made to the client’s theophylline dose?