NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Enoxaparin (Lovenox) inactivates which factors for VTE prophylaxis?

Factor VIIa and IXa
Factor Ia and Va
Factor Xa and IIa
Factor VIIIa and Va

The correct answer is: Factor Xa and IIa

Enoxaparin (Lovenox) is a low molecular weight heparin that primarily inactivates Factor Xa and to a lesser extent, Factor IIa (thrombin). This mechanism of action makes Choice C the correct answer. Factors VIIa and IXa (Choice A) are not predominantly targeted by enoxaparin, so this choice is incorrect. Factor Ia and Va (Choice B) are also not the primary targets of enoxaparin, therefore this choice is incorrect. Factor VIIIa and Va (Choice D) are not affected by enoxaparin in the context of VTE prophylaxis, making this choice incorrect as well.