What Are the Centers for Disease Control and Prevention (CDC)

question 43

Multiple Choice

What are the Centers for Disease Control and Prevention (CDC) guidelines for OR air exchanges per hour?

• A) 10-15 with 20% fresh outside air
• B) 10-15 with 90% filtered recirculated air
• C) 20-25 with 20% fresh outside air
• D) 20-25 with 90% filtered recirculated air

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Definitions:

Epicardium

The outermost layer of the heart wall, consisting of an inner visceral layer of the pericardium that protects and lubricates the heart.

Venous Cavity

A space within the body where deoxygenated blood is collected from the venous system before being returned to the heart.

Coronary Sinus

A large vein on the posterior of the heart that collects blood from the heart muscle (myocardium) and returns it to the right atrium.

Cardiac Vein

Blood vessels that drain deoxygenated blood from the myocardium (heart muscle) into the right atrium of the heart, playing a crucial role in the circulatory system.