**Question:** Anaesthesia used during Coronary angiography technique is:-

A. Local anaesthesia
B. General anaesthesia
C. Regional anaesthesia
D. Intravenous sedation

**Core Concept:**
Coronary angiography is an invasive procedure that involves visualizing the coronary arteries using X-ray fluoroscopy. It is often performed for diagnosing and treating cardiovascular diseases. The appropriate anaesthesia method depends on the patient's condition, procedure details, and the patient's preference.

**Why the Correct Answer is Right:**
The correct answer is D. Intravenous sedation, as it provides adequate analgesia and reduces patient anxiety without causing significant respiratory depression or loss of consciousness. This allows patients to cooperate during the procedure and tolerate the contrast dye injection without distress.

**Why Each Wrong Option is Incorrect:**
A) Local anaesthesia is not suitable for coronary angiography as it only provides analgesia to a specific area, which could result in patient discomfort during the procedure and may prevent cooperation.
B) General anaesthesia is not commonly used for coronary angiography due to the risk of significant respiratory depression and hypotension, which may lead to complications during the procedure.
C) Regional anaesthesia is not suitable for coronary angiography because it provides analgesia to a specific area, which could cause patient discomfort during the procedure and may hinder cooperation.

**Clinical Pearl:**
Coronary angiography should ideally be performed under intravenous sedation, ensuring patient comfort, cooperation, and safety during the procedure. In certain cases, such as patients with severe respiratory or cardiac comorbidities, regional anaesthesia might be considered under close monitoring and consultation with the interventional cardiologist.

**Correct Answer:** D. Intravenous sedation