Vasodilators in Cardiac Anesthesia — MCQs

Most potent cerebral vasodilator is

All are vasodilators except –

Which of the following anaesthetic agent causes bone marrow suppression?

Which calcium channel blocker has the shortest duration of action?

Which of the following drugs acts as a direct vasodilator on blood vessels?

Anesthetic agent (s) safe to use in ICP

A cardiovascular parameter helpful in diagnosis of anaphylaxis during anaesthesia:

An inhalation anaesthetic agent was used in a surgery which caused high output renal failure. The agent is:

Regarding the cardiovascular effects of halothane on blood pressure, the following statements are given: 1. A drop of 20-30 mmHg in blood pressure is commonly observed 2. The fall in blood pressure begins early and is proportional to the depth of Anaesthesia 3. The fall in blood pressure reduces as the depth of Anaesthesia 4. The baroreceptor reflex mechanism is activated in response to the fall in blood pressure Which of the above statements are correct?

A 70-year-old patient with ejection fraction of 25% requires cardioversion for atrial fibrillation in the cardiology suite. During propofol induction (1.5 mg/kg), BP drops from 110/70 to 70/40 mmHg. What is the primary pathophysiological mechanism?