Which of the following medication classifications is not considered a cytotoxic chemotherapy agent?
Alkylating agents.
Antitumor antibiotics.
Opiate antagonists.
Antimetabolites.
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Metoprolol is a beta-blocker that is commonly used to manage hypertension and control heart rate. It works by blocking beta-adrenergic receptors, which decreases heart rate and blood pressure.
Choice B rationale
Enoxaparin is an anticoagulant used to prevent and treat deep vein thrombosis and pulmonary embolism, not primarily to manage hypertension.
Choice C rationale
Heparin is an anticoagulant used to prevent and treat blood clots, and it is not indicated for the management of hypertension.
Choice D rationale
Simvastatin is a lipid-lowering medication used to manage high cholesterol levels and is not used to manage hypertension.
Correct Answer is A
Explanation
Choice A rationale
Lactated Ringers (LR) is an isotonic solution, which means it has the same osmolarity as blood plasma. This property makes LR suitable for rehydrating patients without causing a significant shift of fluids between compartments, maintaining the balance of electrolytes.
Choice B rationale
0.45% Sodium Chloride is a hypotonic solution, meaning it has a lower osmolarity compared to blood plasma. This type of solution would cause fluid to move into cells, potentially leading to cellular swelling.
Choice C rationale
Dextrose in Lactated Ringers is a hypertonic solution because the added dextrose increases the osmolarity. This solution can cause fluid to shift out of cells, leading to cellular shrinkage, which is not ideal for rehydration.
Choice D rationale
None of the above is incorrect because Lactated Ringers (LR) is indeed an isotonic solution.
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