The nurse is caring for a client with hypothyroidism who has a history of myocardial infarction and heart failure.
What thyroid replacement drug would the nurse expect to be ordered?
Levothyroxine.
Thyroid desiccated.
Methimazole.
Liothyronine.
The Correct Answer is A
Levothyroxine is a synthetic form of thyroxine, the hormone that the thyroid gland normally produces. It is used to treat hypothyroidism by replacing the missing hormone and restoring the normal metabolism.
Some explanations for the other choices are:
• Choice B. Thyroid desiccated is a natural thyroid hormone derived from animal thyroid glands.
It contains both T4 and T3 hormones, which may cause side effects or complications in some people with hypothyroidism. It is not recommended as a first-line treatment for hypothyroidism.
• Choice C. Methimazole is an antithyroid drug that blocks the production of thyroid hormones.
It is used to treat hyperthyroidism, not hypothyroidism. Giving methimazole to someone with hypothyroidism would worsen their condition.
• Choice D. Liothyronine is a synthetic form of T3, the active thyroid hormone.
It is sometimes used in combination with levothyroxine to treat hypothyroidism, but it is not a standard treatment. It has a shorter half-life and more variable effects than levothyroxine, and it may increase the risk of cardiac arrhythmias or osteoporosis.
Normal ranges for thyroid function tests vary depending on the laboratory and the method used, but generally they are:
• TSH: 0.4 to 4.0 mIU/L
• Free T4: 0.8 to 2.0 ng/dL
• Free T3: 2.3 to 4.2 pg/mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is A
Explanation
This is the recommended dosage for the prevention and treatment of osteoporosis in postmenopausal women.
Choice B is wrong because 70 mg once a week is the dosage for alendronate (Fosamax), not ibandronate.
Choice C is wrong because 400 mg/d is the dosage for etidronate (Didronel), not ibandronate.
Choice D is wrong because ibandronate should be taken on an empty stomach, at least 60 minutes before food or drink.
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