MOD 2 - Chest Radiography

vertebral levels of apices

T1

Why PA?

• reduces heart mag

• easier to remove scapulae of the lung field

• better inspiration

Significance of retrotracheal space ("Raider's triangle")

When the arms are inadequately abducted, this area will be obscured and can impact the patient's diagnosis. 

Respiration Guide

• PA/AP = 9 full post ribs

• LAT = Diaphragm inf to 11VB

When counting posterior ribs above the diaphragm on an AP/PA CXR, which side do we typically use and why?

right lung because it is shorter (due to the liver location) than the left. If the shorter lung is fully aerated, accurate inspiration has been achieved overall

Voluntary vs. Non-voluntary Motion

• voluntary = breathing

• involuntary = heart motion