The first stool of a neonate is called:

Appeared in: DSSSB 13 August 2024

Explanation

Meconium is the correct medical term for the first stool of a neonate.
It is a dark green, tar-like substance composed of materials ingested in utero, such as amniotic fluid, lanugo, mucus, and intestinal cells.
Passage of meconium, typically within 24-48 hours of birth, is a key indicator of a patent and functional gastrointestinal tract.
Its appearance changes to transitional stools and then milk stools as the newborn begins feeding.

Option A: Lochia is the vaginal discharge after giving birth, containing blood, mucus, and uterine tissue. It is a maternal finding, not a neonatal one.
Option B: Lanugo is the fine, downy hair that can cover a newborn's body, especially in preterm infants. While some lanugo may be swallowed and become part of meconium, it is not the stool itself.
Option D: Vernix caseosa is the waxy, cheese-like white substance that coats a newborn's skin, providing protection in the amniotic fluid. It is a skin finding, not related to stool.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Normal physiological findings in the neonate as background academic context rather than a clinical decision trigger.
A nurse's primary responsibility includes assessing the newborn for normal physiological adaptation. Documenting the first passage of meconium is a critical nursing action.
Failure to pass meconium within 24-48 hours must be reported to the pediatrician or neonatologist for further investigation, as it can indicate serious conditions like bowel obstruction.
Nurses educate new parents about the normal progression of newborn stools, from black meconium to yellow, seedy stools (in breastfed infants), which helps alleviate parental anxiety and promotes bonding.

How to Approach the Question

First, identify the key terms in the question: 'first stool' and 'neonate'. This directs you to focus on newborn gastrointestinal physiology.
Recall or review the specific terminology used for normal findings in a newborn.
Evaluate each option. 'Lochia' is related to the mother's postpartum period, so it can be eliminated.
Differentiate between the remaining neonatal terms: 'Lanugo' is hair, 'Vernix' is a skin coating, and 'Meconium' is stool.
Select 'Meconium' as the only term that correctly identifies the first stool.
Confirm the clinical significance: passing meconium indicates GI tract patency.

Concept Tested & Keywords

QMF3jSWXkNfZFlpUmCfjSM

E6 Obstetrics Williams p. 3-10

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1110-1112

Practise the full DSSSB 13 August 2024

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