SCTIMST Staff Nurse - 2016
Obstetrics & Gynaecology
Easy

Babies who are born before the end of 37 weeks of gestation and have a normal rate of intrauterine growth are called ______ .

Appeared in: SCTIMST Staff Nurse - 2016

Explanation

  • The primary defining characteristic given in the question is birth before 37 weeks of gestation.
  • According to the World Health Organization (WHO) and standard medical definitions, any baby born before 37 completed weeks of gestation is classified as 'preterm'.
  • The phrase 'normal rate of intrauterine growth' indicates the baby is 'Appropriate for Gestational Age' (AGA), but 'preterm' is the correct classification based on the gestational period.
  • Preterm babies can have normal, slow, or accelerated growth in utero, but their primary classification remains 'preterm' based on timing of birth.

Why Other Options Were Wrong

  • Option A: This term, also known as Large for Gestational Age (LGA), describes babies with a birth weight above the 90th percentile for their gestational age. This contradicts the 'normal rate of intrauterine growth' mentioned in the question.
  • Option C: This term, also known as Small for Gestational Age (SGA), describes babies with a birth weight below the 10th percentile for their gestational age, indicating fetal growth restriction. This contradicts the 'normal rate of intrauterine growth'.
  • Option D: This term describes babies born at or after 42 completed weeks of gestation. This directly contradicts the condition of being born 'before the end of 37 weeks'.

Related Visual

Visual explanation — Related Visual
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 intrauterine growth as background academic context rather than a clinical decision trigger.
  • Accurate classification of newborns is crucial for anticipating risks and planning care. A preterm infant, even if AGA, has risks associated with immature organ systems (e.g., respiratory distress, temperature instability).
  • Nurses must assess both gestational age and growth status to provide appropriate interventions, such as monitoring for hypoglycemia, respiratory support, and thermoregulation.
  • What if? If the baby was born at 36 weeks but their weight was below the 10th percentile, they would be classified as both 'preterm' and 'Small for Gestational Age (SGA)'. This dual diagnosis would indicate a higher risk for complications like hypoglycemia and hypothermia compared to a preterm AGA infant.
How to Approach the Question
  • First, identify the key pieces of information in the question stem: 'born before the end of 37 weeks' and 'normal rate of intrauterine growth'.
  • Translate the first piece of information, 'born before 37 weeks', into its medical term. This is the definition of 'preterm'.
  • Translate the second piece of information, 'normal rate of intrauterine growth', into its medical term. This means the baby is 'Appropriate for Gestational Age' (AGA).
  • Review the options provided. 'Preterm' is listed as an option and directly matches the primary classification based on gestational age.
  • Eliminate other options: 'big for date' (LGA) and 'small for date' (SGA) relate to abnormal growth, and 'post-term' relates to a different gestational period.
  • Conclude that 'preterm' is the most accurate and direct answer based on the provided options.
Concept Tested & Keywords
  • Concept Tested: Classification of newborns based on gestational age and intrauterine growth.
  • Stem keywords: babies, born before 37 weeks, normal rate of intrauterine growth
  • Lead-in keywords: are called
  • Negative lead-in flag: false

Question ID

Q2MLLVs3HF2Zcq01NUhbHs

Reference Book

E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) p. 31-33

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1055-1057

E6 Anatomy Grays 43e Vol 1 Part 3 p. 12-14

Practise the full SCTIMST Staff Nurse - 2016

Attempt every question from this paper in a timed mock, then review the full solution for each one.