The nurse is working with a client who is newly diagnosed with hypothyroidism. Diagnostic testing has indicated that the client’s health problem is caused by anterior pituitary dysfunction.
This client’s hypothyroidism is rooted in a deficiency of:
tetraiodothyronine.
thyroid-stimulating hormone (TSH).
triiodothyronine.
The Correct Answer is B
Choice A is wrong because tetraiodothyronine is another name for thyroxine (T), which is a hormone produced by the thyroid gland, not the anterior pituitary gland.14
Choice C is wrong because triiodothyronine (T) is also a hormone produced by the thyroid gland, not the anterior pituitary gland.14
Normal ranges for TSH are 0.4 to 4.0 mIU/L, for T are 100 to 200 ng/dL, and for T are 4.5 to 11.2 mcg/dL.1
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
This is because antiemetics should be given to prevent motion sickness rather than after nausea or vomiting develop. Taking the medication 30 minutes before departing allows enough time for the drug to be absorbed and reach its peak effect.
Choice A is wrong because avoiding eating or drinking for 6 hours before the trip may cause dehydration and low blood sugar, which can worsen nausea and vomiting.
It is better to eat a light meal or snack before the trip and avoid spicy, greasy, or acidic foods.
Choice C is wrong because taking two doses if relief is not achieved may cause overdose and adverse effects.
Antiemetics should be taken as prescribed and not exceeded without consulting a doctor.
Choice D is wrong because increasing fluid intake to prevent urinary retention is not relevant for motion sickness.
Urinary retention is a possible side effect of some antiemetics, such as anticholinergics, but it is not a common problem for most people.
Fluid intake should be moderate and not excessive to avoid stomach distension.
Correct Answer is B
Explanation
Levothyroxine is a synthetic thyroid hormone that is used to treat hypothyroidism. It should be taken on an empty stomach, preferably in the morning, with a full glass of water to facilitate absorption and prevent choking. Taking the medication with food or other substances may interfere with its effectiveness.
Choice A is wrong because levothyroxine does not need to be taken after breakfast.
In fact, taking it after breakfast may reduce its absorption and efficacy.
Choice C is wrong because levothyroxine does not require the patient to remain in the upright position for 30 minutes after administering.
This instruction is more applicable to bisphosphonates, which are drugs used to treat osteoporosis.
Choice D is wrong because levothyroxine should not be taken at night.
Taking it at night may cause insomnia, as well as reduced absorption and efficacy.
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