Babies who are born before the end of 37 weeks of gestation and have a normal rate of intrauterine growth are… - UP CHO - 10 September 2021

UP CHO - 10 September 2021

Child Health Nursing (Pediatrics)

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Appeared in: UP CHO - 10 September 2021

Explanation

The primary defining factor in the question is the gestational age: 'born before the end of 37 weeks'.
By standard medical definition, any infant born before 37 completed weeks of gestation is classified as preterm.
The phrase 'normal rate of intrauterine growth' is a secondary descriptor, indicating the baby is Appropriate for Gestational Age (AGA).
While the baby is technically a 'preterm AGA' infant, the option 'preterm' correctly identifies the primary classification based on gestational age.

Option A: This term, also known as Large for Gestational Age (LGA), describes a baby whose birth weight is above the 90th percentile for their gestational age. It refers to size, not the duration of pregnancy.
Option C: This term, also known as Small for Gestational Age (SGA), describes a baby whose birth weight is below the 10th percentile for their gestational age. The question states the baby has a 'normal rate of intrauterine growth'.
Option D: This term describes a baby born at or after 42 completed weeks of gestation. The question specifies the baby was born before 37 weeks.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of newborns based on gestational age and birth weight as background academic context rather than a clinical decision trigger.
Identifying a newborn as preterm is critical for anticipating and managing potential health risks, such as respiratory distress syndrome (RDS), hypothermia, hypoglycemia, and feeding difficulties.
Nurses must initiate specific protocols for preterm infants, including placing them in an incubator for temperature regulation, monitoring blood glucose levels, providing respiratory support if needed, and assisting with specialized feeding methods.
What if? If the baby was born at 36 weeks but their weight was below the 10th percentile, they would be classified as 'preterm' and 'small for gestational age' (SGA). This dual classification indicates a higher risk for complications like hypoglycemia and perinatal asphyxia compared to a preterm AGA infant.

How to Approach the Question

First, identify the key pieces of information in the question stem: the gestational age ('before the end of 37 weeks') and the growth rate ('normal').
Recognize that newborn classification involves both gestational age and size for age.
Analyze the options to see which classification system they represent. 'Preterm' and 'post-term' relate to gestational age, while 'big for date' and 'small for date' relate to size.
Match the primary information from the stem (gestational age < 37 weeks) to the corresponding option.
Select 'preterm' as it directly answers the question based on the provided gestational age, which is the most fundamental classification.

Concept Tested & Keywords

Concept Tested: Classification of newborns based on gestational age and birth weight.
Stem keywords: babies, born before 37 weeks, gestation, normal rate of intrauterine growth
Lead-in keywords: are called
Clinical cues: Gestational age less than 37 weeks is the defining characteristic of a preterm birth.

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