which of the following drug can worsen angina:
**Core Concept**
The question tests the understanding of how certain medications can affect the cardiovascular system, specifically the management of angina pectoris. Angina is a condition characterized by chest pain or discomfort due to transient myocardial ischemia, often caused by atherosclerotic coronary artery disease.
**Why the Correct Answer is Right**
Non-selective beta-blockers, such as propranolol, can worsen angina by reducing the heart rate and contractility, which decreases the coronary perfusion pressure and increases the myocardial oxygen demand. This is because the heart muscle requires more oxygen to pump at a slower rate, and the decreased perfusion pressure may not meet this increased demand.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incomplete. Without knowing the specific drug, it is impossible to evaluate its potential effect on angina.
* **Option B:** This option is also incomplete, and without knowing the specific drug, it is impossible to evaluate its potential effect on angina.
* **Option C:** This option is also incomplete, and without knowing the specific drug, it is impossible to evaluate its potential effect on angina.
**Clinical Pearl / High-Yield Fact**
Non-selective beta-blockers can worsen angina in patients with coronary artery disease, whereas selective beta-1 blockers (e.g., metoprolol) are often used to manage angina. This distinction is crucial in clinical practice.
**Correct Answer: D. Non-selective beta-blockers (e.g., propranolol) can worsen angina by reducing coronary perfusion pressure and increasing myocardial oxygen demand.**