A Left PA 60-Degree Oblique Chest Projection (LAO Position)

question 21

Multiple Choice

A left PA 60-degree oblique chest projection (LAO position)
1) demonstrates the heart shadow to the right of the vertebral column.
2) is obtained to evaluate the size and configuration of the heart shadow.
3) best demonstrates the left lung.
4) demonstrates three times as much lung field on one side of the vertebral column as on the opposite side.

• A) 1 and 2 only
• B) 1 and 3 only
• C) 1, 2, and 4 only
• D) 2 and 4 only

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Definitions:

Solid foods

Foods that are not liquid or pureed, introduced to an infant’s diet typically around six months of age to complement breastmilk or formula.

Whole cow's milk

The complete, unaltered milk obtained from cows, rich in nutrients like fat, protein, vitamins, and minerals, generally consumed after infancy.

Months old

A measure of age, particularly used for infants and young children, indicating the number of months since birth.

Years old

is a measure of age expressed by the number of years passed since birth.