A PA Chest Projection Obtained in Full Lung Expansion

question 41

Multiple Choice

A PA chest projection obtained in full lung expansion

• A) demonstrates 10 to 11 posterior ribs above the diaphragm.
• B) demonstrates the greatest expansion transversely.
• C) would have been obtained with the patient in a seated position.
• D) demonstrates a broader and shorter heart shadow than if obtained in expiration.

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Definitions:

Arteries

Blood vessels that carry oxygenated blood away from the heart to the body's tissues, except for the pulmonary arteries which carry deoxygenated blood to the lungs.

Deoxygenated Blood

Blood that is rich in carbon dioxide and low in oxygen, typically found in the venous system and right chambers of the heart.

Right Atrium

The upper right chamber of the heart that receives deoxygenated blood from the body and pumps it into the right ventricle.

Vena Cava

A large vein carrying deoxygenated blood into the heart, with two principales types: the superior and the inferior vena cava.