Symptomatic coronary narrowing – MCQ – Answer

Symptomatic coronary narrowing – MCQ – Answer

Coronary narrowing by atheromatous plaque becomes symptomatic if the cross sectional area is reduced by –% – Correct Answer: d) 70%

Coronary vessels have good neurally mediated vascular regulation. Hence flow limitation (even during exercise) does not occur until the cross sectional area of the vessel is reduced by at least 70%.

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