All of the following are true about Right Ventricular Infarcts, except:
First, I recall that right ventricular infarcts are often associated with inferior wall myocardial infarctions. The right coronary artery usually supplies the right ventricle and the inferior part of the left ventricle. So, when there's an inferior MI, the right ventricle might also be affected if the infarction extends to the right side.
Common features of right ventricular infarcts include elevated jugular venous pressure (JVP) due to right heart failure, hypotension from reduced cardiac output, and the presence of S1Q3T3 pattern on ECG, though that's more for pulmonary embolism. Also, right ventricular infarction can lead to decreased left ventricular filling, which might result in paradoxical hypotension that improves with fluid administration. However, patients might not have significant chest pain compared to left-sided infarcts.
Now, the question asks which statement is NOT true. Let's think about typical distractors. For example, an incorrect option might state that right ventricular infarcts are always associated with ST elevation in lead V1-V4, but actually, they show ST elevation in V1 and V4R. Another wrong option could be that right ventricular infarcts don't cause hypotension, which is incorrect because they can. Also, maybe an option that says right ventricular infarcts are usually due to left anterior descending artery occlusion, but that's wrong because it's the right coronary artery.
The correct answer is likely an option that incorrectly attributes the cause or a feature. For example, if an option says "Right ventricular infarcts are associated with ST elevation in V1-V4," that's incorrect because the right ventricle's infarction shows ST elevation in V1 and V4R, not all the way to V4. So the incorrect statement would be about the ECG changes. Another possibility is an option stating that right ventricular infarcts don't require fluid resuscitation, which is wrong because they often do need fluids to maintain preload.
Putting it all together, the exception would be an option that incorrectly describes the ECG findings or the management. The correct answer is probably the one that says "Right ventricular infarcts are associated with ST elevation in leads V1-V4" because the right ventricle's infarction is best seen in V1 and V4R. So the exception is that statement.
**Core Concept**
Right ventricular infarcts (RVIs) are typically associated with inferior wall myocardial infarctions due to shared blood supply by the right coronary artery. Key features include elevated jugular venous pressure (JVP), hypotension, and paradoxical improvement in hypotension with fluid administration. ECG changes in RVIs are best detected in right-sided leads (V3R, V4R).
**Why the Correct Answer is Right**
The incorrect statement is likely one claiming that RVIs are associated with ST elevation in **standard leads V1βV4**. In reality, RVIs show ST elevation in **right-sided ECG leads (V1R, V4R)**, not