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SteveDuring a cardiac catheterization, blood measurements taken from the left ventricle may include oxygen content, pressure, and the presence of certain markers related to heart function or damage, such as troponin levels. These measurements help in assessing the heart's pumping capacity and overall function.
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Why is the medication heparin sometimes administered prior to a left-side cardiac catheterization?
Heparin is administered prior to a left-side cardiac catheterization to prevent blood clot formation during the procedure. This helps maintain blood flow through the catheter and reduces the risk of blockages that could lead to complications such as heart attack or stroke.
What is a Cardiac catheter?
A cardiac catheter is a thin, flexible tube used to diagnose and treat heart conditions. During a cardiac catheterization procedure, the catheter is inserted into a blood vessel in the arm, neck, or groin, and guided to the heart to assess blockages, measure pressures, or deliver treatments such as stents.
What causes the pulmonary valve to close?
The pulmonary valve closes in response to pressure changes within the heart chambers. When the right ventricle contracts during systole, the pressure within the ventricle increases, causing the pulmonary valve to close and prevent blood from flowing back into the right ventricle.
What value that prevents blood from returning to the right ventricle?
The value that prevents blood from returning to the right ventricle is the pulmonary valve. It is located between the right ventricle and the pulmonary artery and opens to allow blood to flow from the right ventricle to the lungs for oxygenation. It closes to prevent the backflow of blood into the right ventricle during ventricular relaxation.
What is the graphic of heart sounds produced during the cardiac cycle?
Phonocardiogram
