A baby who weighs less than 2500 gm at birth is called:

Appeared in: IGNOU PB Bsc Entrance-2023

Explanation

A baby weighing less than 2500 grams at birth is defined as a Low Birth Weight (LBW) infant, as per international agreement and WHO guidelines.
This classification is based solely on the infant's absolute birth weight, irrespective of the duration of the pregnancy (gestational age).
LBW is a critical indicator for neonatal health, as these infants face a higher risk of mortality and morbidity.

Option A: This term, also known as Small for Gestational Age (SGA), describes an infant whose birth weight is below the 10th percentile for their specific gestational age. It's a relative measure, not an absolute weight cutoff.
Option B: This term defines a baby born before 37 completed weeks of gestation. The classification is based on the length of pregnancy, not the baby's weight.
Option D: This is a synonym for a 'preterm baby'. It refers to the gestational age (less than 37 weeks) and not directly to the birth weight.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Definition of Low Birth Weight (LBW) in neonates as background academic context rather than a clinical decision trigger.
Accurate classification of newborns is critical for initiating appropriate nursing care, such as thermoregulation for hypothermia risk, nutritional support for hypoglycemia risk, and strict infection control for sepsis risk in LBW infants.
LBW is a major public health indicator in communities, reflecting maternal health, nutrition, and socioeconomic conditions. High rates of LBW signal a need for improved prenatal care.
What if? If a baby was born at 36 weeks but weighed 2600 grams, the baby would be classified as 'preterm' but NOT 'low birth weight'. The primary nursing concerns would be complications of prematurity (like respiratory distress) rather than issues directly related to low weight.

How to Approach the Question

First, identify the key parameter in the question stem: 'weighs less than 2500 gm'. Recognize this is a specific, absolute weight value.
Next, analyze each option based on its precise medical definition.
Evaluate 'Small for date baby': This is a relative measure (weight for gestational age), not an absolute weight. Eliminate this option.
Evaluate 'Preterm baby' and 'Premature baby': These are synonyms and refer to gestational age (less than 37 weeks), not weight. Eliminate these options.
Conclude that 'Low birth weight baby' is the only term defined strictly by the birth weight being less than 2500 grams.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) pp. 30-32, 31-33

E6 Text Book Of Pediatric Nursing 3rd Panchali Pal — Part 1 (pp 36-238 of 713) p. 177-179

Practise the full IGNOU PB Bsc Entrance-2023

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