Angina Pectoris Overview

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What is the main symptom of angina pectoris?

Irregular heartbeat

Dizziness

Shortness of breath

Chest pain (correct)

Why does anginal pain occur during exercise or emotional stimuli?

Decrease in myocardial fibre tension

Increase in oxygen supply to the heart

Increase in blood supply to the ischemic region

Increase in myocardial oxygen requirement (correct)

What is the impact of increase in end diastolic pressure on anginal attacks?

Leads to shortness of breath

Does not affect anginal attacks

Increases the chances of anginal attacks (correct)

Decreases the chances of anginal attacks

How do nitrates help in classical angina?

By reducing preload Signup and view all the answers

Which vessels provide collateral circulation to the endocardial region?

Coronary arteries Signup and view all the answers

What is the main action of nitrates responsible for relief in classical angina?

Selective venodilation resulting in decreased preload Signup and view all the answers

Which drug causes a phenomenon known as coronary steal, leading to its therapeutic failure?

Dipyridamole Signup and view all the answers

Which nitrate drug is the longest acting in the group?

Pentaerythritol tetranitrate Signup and view all the answers

Which enzyme is responsible for releasing NO from nitrates?

Nitric oxide synthase Signup and view all the answers

What is the therapeutic benefit of nitrates in variant/prinzmetal angina mainly due to?

Coronary vasodilatory action Signup and view all the answers

Angina Pectoris Overview

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Questions and Answers

What is the main symptom of angina pectoris?

Why does anginal pain occur during exercise or emotional stimuli?

What is the impact of increase in end diastolic pressure on anginal attacks?

How do nitrates help in classical angina?

Which vessels provide collateral circulation to the endocardial region?

What is the main action of nitrates responsible for relief in classical angina?

Which drug causes a phenomenon known as coronary steal, leading to its therapeutic failure?

Which nitrate drug is the longest acting in the group?

Which enzyme is responsible for releasing NO from nitrates?

What is the therapeutic benefit of nitrates in variant/prinzmetal angina mainly due to?

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