How Are Preterm and Postterm Infants Defined

question 18

Multiple Choice

How are preterm and postterm infants defined?

• A) Preterm before 34 weeks if appropriate for gestational age (AGA);before 37 weeks if small for gestational age (SGA)
• B) Postterm after 40 weeks if large for gestational age (LGA);beyond 42 weeks if AGA
• C) Preterm before 37 weeks,postterm beyond 42 weeks,no matter the size for gestational age at birth
• D) Preterm,SGA before 38 to 40 weeks;postterm,LGA beyond 40 to 42 weeks

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Definitions:

Right Ventricle

The lower right chamber of the heart that receives deoxygenated blood from the right atrium and pumps it into the lungs via the pulmonary artery.

Pulmonary Semilunar Valve

A valve in the heart located between the right ventricle and the pulmonary artery, preventing backflow of blood into the heart.

Pulmonary Artery Trunk

The main vessel that carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation.

Dilated Veins

Veins that are enlarged and often visible under the skin due to increased blood pressure or volume.