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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).

Answer and Explanation

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.

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Correct Answer is A

Explanation

Choice A rationale

Propylthiouracil (PTU) is used to treat hyperthyroidism. It works by inhibiting the production of thyroid hormones, thereby reducing symptoms of hyperthyroidism such as rapid heart rate, sweating, and nervousness.

Choice B rationale

Propylthiouracil (PTU) is not used to treat hyperglycemia. Medications for hyperglycemia include insulin and oral hypoglycemic agents.

Choice C rationale

Propylthiouracil (PTU) is not indicated for hypoglycemia. Treatment for hypoglycemia typically includes glucose administration or glucagon.

Choice D rationale

Propylthiouracil (PTU) is not used to treat hypothyroidism. Hypothyroidism is treated with thyroid hormone replacement therapy, such as levothyroxine.

A. Alkylating agents. B. Antitumor antibiotics. C. Opiate antagonists. D. Antimetabolites.

Correct Answer is C

Explanation

Choice A rationale

Alkylating agents are cytotoxic and work by damaging DNA, preventing cancer cell replication.

Choice B rationale

Antitumor antibiotics are cytotoxic and interfere with DNA or RNA synthesis, inhibiting cancer cell growth.

Choice C rationale

Opiate antagonists are not used in cancer treatment but to reverse opioid overdoses by blocking opioid receptors.

Choice D rationale

Antimetabolites are cytotoxic and interfere with DNA and RNA growth by substituting for the normal building blocks of RNA and DNA.

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Which of the following medications is considered a controlled substance classified as Schedule V when mixed with other antitussive medications?

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Naxlex Comprehensive Predictor Exams

The nurse is caring for a new client that got admitted to the unit for fevers.The client takes propylthiouracil (PTU) at home.The nurse understands that the client is taking propylthiouracil (PTU) to treat which of the following conditions?

Correct Answer is A

Explanation

Which of the following medication classifications is not considered a cytotoxic chemotherapy agent?

Correct Answer is C

Explanation

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