NAPLEX (North American Pharmacist Licensure Examination) Practice Exam 2026 - Free NAPLEX Practice Questions and Study Guide

Question: 1 / 1820

Which class of medications is known to prolong the QT interval?

Antihypertensives

Antiarrhythmics

The correct class of medications that is known to prolong the QT interval is antiarrhythmics. This is because antiarrhythmics work by affecting the electrical conduction in the heart, which can cause changes in the QT interval. Antihypertensives are used to lower high blood pressure, and while they may have side effects, they are not specifically known for prolonging the QT interval. Similarly, antidiabetics and analgesics may have potential side effects but are not specifically linked to prolonging the QT interval. Therefore, option B is the correct answer.

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Antidiabetics

Analgesics

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