Which of the following medications is considered a controlled substance classified as Schedule V when mixed with other antitussive medications?
Diphenhydramine (Benadryl).
Codeine (Co-Caf).
Benzonatate (Tessalon Perles).
Guaifenesin (Mucinex).
The Correct Answer is B
Choice A rationale
Diphenhydramine is an antihistamine used to relieve allergy symptoms.
Choice B rationale
Codeine is a narcotic pain reliever and cough suppressant classified as a Schedule V controlled substance when combined with other antitussive medications.
Choice C rationale
Benzonatate is a non-narcotic cough suppressant that numbs the throat and lungs.
Choice D rationale
Guaifenesin is an expectorant and not a controlled substance.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","D"]
Explanation
Choice A rationale
Ethinyl estradiol and drospirenone (Yaz) is a combination oral contraceptive used to prevent pregnancy. It works by inhibiting ovulation, altering the cervical mucus to prevent sperm penetration, and changing the uterine lining to prevent implantation.
Choice B rationale
Finasteride is not used for contraception or prevention of pregnancy. It is primarily used to treat benign prostatic hyperplasia (BPH) and androgenetic alopecia (male pattern baldness).
Choice C rationale
Desogestrel (Mirena) is a hormonal intrauterine device (IUD) used for long-term contraception. It releases a progestin hormone that thickens cervical mucus, inhibits sperm motility, and thins the endometrial lining to prevent pregnancy.
Choice D rationale
Medroxyprogesterone acetate (Depo-Provera) is an injectable contraceptive that provides long-term prevention of pregnancy. It prevents ovulation and thickens cervical mucus to inhibit sperm penetration.
Correct Answer is A
Explanation
Choice A rationale
Waiting at least 5 minutes between puffs allows the first dose to take effect, optimizing absorption and reducing side effects when different inhaled medications are used.
Choice B rationale
Waiting 10 minutes between puffs is unnecessary and might reduce adherence to treatment due to the prolonged interval.
Choice C rationale
"None of the above" does not provide a valid education point for using metered-dose inhalers.
Choice D rationale
"All of the above" is incorrect as it includes a recommendation that is not necessary (waiting 10 minutes). .
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