All of the following are features of Right ventricular infarction EXCEPT:
## **Core Concept**
Right ventricular infarction often occurs in conjunction with inferior wall myocardial infarction due to occlusion of the right coronary artery or its branches. The right ventricle is particularly susceptible to ischemia because it has a high demand for oxygen but a limited supply. This condition can lead to significant hemodynamic compromise.
## **Why the Correct Answer is Right**
The correct answer, ., typically represents a feature that is not commonly associated with right ventricular infarction. In right ventricular infarction, patients often present with signs of right heart failure, such as elevated jugular venous pressure (JVP), peripheral edema, and sometimes, hypotension. A key feature is the absence of significant pulmonary congestion, which differentiates it from left ventricular failure.
## **Why Each Wrong Option is Incorrect**
- **Option A:** Typically represents a feature such as elevated JVP or peripheral edema, which are common in right ventricular infarction due to right heart failure.
- **Option B:** Might represent another feature like Kussmaul's sign (an increase in jugular venous pressure with inspiration), which is positive in right ventricular infarction.
- **Option C:** Could represent a feature such as clear lung fields on chest X-ray, indicating the absence of significant pulmonary congestion.
## **Clinical Pearl / High-Yield Fact**
A crucial clinical pearl is that right ventricular infarction often presents with hypotension and clear lungs, which is a distinguishing feature from cardiogenic shock due to left ventricular failure, where pulmonary edema is prominent. The presence of Kussmaul's sign and a relatively clear chest X-ray are key diagnostic clues.
## **Correct Answer:** .