Cardiologist washout takes place where?

• A. Coronary arteries
• B. Non coronary collaterals
• C. Aorta
• D. Pulmonary veins

Answer: (B)

The key idea is where the cardioplegic solution is cleared from the heart once protection is ending. While the cardioplegia is delivered to the myocardium primarily through the coronary arteries, its washout—removal from the tissue—occurs via pathways outside the coronary network. Those non coronary collateral vessels drain the cardioplegic solution away as perfusion resumes, rather than the coronary arteries themselves. The aorta is the delivery route for cardioplegia during cross-clamping, and the pulmonary veins are not involved in this washout process.