LRA 213 Exam Questions and Answers Latest Update 2025-2026
The two most common landmarks for chest positioning are the: - Answers jugular notch and
vertebra prominens
The vertebra prominens corresponds to the level of: - Answers C7
The upper margin of the lungs is at the level of the: - Answers vertebra prominens
The lower concave area of the lung is termed the: - Answers base
The internal prominence or ridge in which the trachea bifurcates into the right and left bronchi is
termed the: - Answers carina
Air of gas that escapes into the pleural cavity results in a condition known as: - Answers
pneumothorax
The central ray (CR) for an anteroposterior (AP) supine, adult chest projection should be
centered: - Answers 3 to 4 inches (8-10 cm) below the jugular notch
Which of the following clinical indications often require the inspiration/expiration chest series to
be done? - Answers small pneumothorax
Which type of body habitus typically requires that the image receptor be placed crosswise rather
than lengthwise for a posteroanterior (PA) chest? - Answers Hypersthenic
A well-inspired average adult chest PA projection will have a minimum of _________ posterior
ribs seen above the diaphragm. - Answers 10
Which of the following objects does not have to be removed/moved before chest radiography? -
Answers glasses
A correctly positioned lateral chest radiograph demonstrates some separation of the posterior
ribs due to the divergence of the beam. But a separation of greater than ________ cm indicates
objectionable rotation from a true lateral. - Answers 1
Of the following factors, which one is most crucial to demonstrate possible air and fluid levels in
the chest? - Answers patient in erect or decubitus position
Which of the following factors must be applied to minimize distortion of the heart? - Answers 72
inch SID
Of the following positioning actions, which one will remove the majority of the scapula from the
lung fields? - Answers Roll the shoulders forward
What type of central ray (CR) angle is required for the AP semi-axial projection for the lung
apices? - Answers 15 to 20 degrees
The two most common landmarks for chest positioning are the: - Answers jugular notch and
vertebra prominens
The vertebra prominens corresponds to the level of: - Answers C7
The upper margin of the lungs is at the level of the: - Answers vertebra prominens
The lower concave area of the lung is termed the: - Answers base
The internal prominence or ridge in which the trachea bifurcates into the right and left bronchi is
termed the: - Answers carina
Air of gas that escapes into the pleural cavity results in a condition known as: - Answers
pneumothorax
The central ray (CR) for an anteroposterior (AP) supine, adult chest projection should be
centered: - Answers 3 to 4 inches (8-10 cm) below the jugular notch
Which of the following clinical indications often require the inspiration/expiration chest series to
be done? - Answers small pneumothorax
Which type of body habitus typically requires that the image receptor be placed crosswise rather
than lengthwise for a posteroanterior (PA) chest? - Answers Hypersthenic
A well-inspired average adult chest PA projection will have a minimum of _________ posterior
ribs seen above the diaphragm. - Answers 10
Which of the following objects does not have to be removed/moved before chest radiography? -
Answers glasses
A correctly positioned lateral chest radiograph demonstrates some separation of the posterior
ribs due to the divergence of the beam. But a separation of greater than ________ cm indicates
objectionable rotation from a true lateral. - Answers 1
Of the following factors, which one is most crucial to demonstrate possible air and fluid levels in
the chest? - Answers patient in erect or decubitus position
Which of the following factors must be applied to minimize distortion of the heart? - Answers 72
inch SID
Of the following positioning actions, which one will remove the majority of the scapula from the
lung fields? - Answers Roll the shoulders forward
What type of central ray (CR) angle is required for the AP semi-axial projection for the lung
apices? - Answers 15 to 20 degrees
