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 D
Explanation
Guaifenesin is an expectorant that helps thin and loosen mucus in the lungs, making it easier to cough up the sputum. Some possible explanations for the other choices are:
Choice A. Benzonatate is wrong because benzonatate is an antitussive that suppresses the cough reflex by numbing the throat and lungs.
It does not help with sputum production or clearance.
Choice B. Dextromethorphan is wrong because dextromethorphan is also an antitussive that acts on the brain to reduce the urge to cough.
It does not affect the mucus or bronchial secretions.
Choice C. Hydrocodone is wrong because hydrocodone is a narcotic antitussive that works by binding to opioid receptors in the brain and spinal cord, blocking pain signals and decreasing cough.
It can cause sedation, respiratory depression, and dependence, and is not indicated for bronchitis.
Normal ranges for sputum production vary depending on the individual and the cause of the cough, but generally range from 10 to 100 mL per day.
Excessive or abnormal sputum may indicate an infection, inflammation, or obstruction of the airways.
Correct Answer is D
Explanation
Glulisine is a rapid-acting insulin that has an onset of action of 2 to 5 minutes and peaks in 30 to 90 minutes, making it the fastest among the choices. Some possible explanations for the other choices are:
Choice A. Aspart is also a rapid-acting insulin, but it has a slightly longer onset of action (10 to 20 minutes) and peak time (1 to 3 hours) than glulisine.
Choice B. Lispro is another rapid-acting insulin, but it has a similar onset of action (<15 minutes) and peak time (30 to 90 minutes) as glulisine, so it is not the fastest.
Choice C. Regular is a short-acting insulin that has a much longer onset of action (30 to 60 minutes) and peak time (2 to 4 hours) than glulisine, so it is not suitable for fast therapeutic effects.
Normal ranges for blood glucose levels are 70 to 130 mg/dL before meals and less than 180 mg/dL after meals.
Insulin doses are adjusted based on blood glucose monitoring, carbohydrate intake, physical activity, and other factors.
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