The first stool of a neonate is called?

RRB Staff Nurse Kolkata-2015

Child Health Nursing (Pediatrics)

Easy

Appeared in: RRB Staff Nurse Kolkata-2015

Explanation

Meconium is the correct medical term for the first feces of a newborn infant.
It is a distinctive dark greenish-black, tar-like, sticky substance that is odorless.
Its composition includes materials the fetus swallowed in the uterus, such as amniotic fluid, intestinal secretions, shed mucosal cells, and lanugo (fetal hair).
The passage of meconium, typically within 24-48 hours of birth, is a key sign confirming the patency of the newborn's gastrointestinal tract.

Option A: Sebum is an oily substance secreted by the sebaceous glands of the skin to provide lubrication. It is not related to the gastrointestinal system or stool.
Option B: Lanugo is the fine, downy hair that covers a fetus and is often present on a newborn's body, especially on the back and shoulders. While some lanugo may be swallowed and become part of meconium, it is not the stool itself.
Option D: Vernix caseosa is a waxy, cheese-like white substance that coats the skin of the fetus in the uterus, protecting it from the amniotic fluid. It is a skin covering, not stool.

Visual 1: Image - A clear photograph showing the characteristic dark, tar-like appearance of meconium in a newborn's diaper. The caption should state: 'Meconium, the first stool of a newborn, is typically greenish-black and sticky.'
Visual 2: Infographic - An illustration of a newborn with labels pointing to Vernix Caseosa (waxy skin coating) and Lanugo (fine hair), with a separate text box defining Meconium as the first stool, to help differentiate these key terms.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain This question tests the knowledge of specific terminology used to describe the physiological characteristics of a newborn infant as background academic context rather than a clinical decision trigger.
A primary nursing responsibility in the immediate postpartum period is to monitor and document the newborn's first passage of meconium. This is a critical assessment that confirms anal patency and initial gastrointestinal function.
Failure to pass meconium within 24-48 hours is a significant red flag. The nurse must report this finding to the pediatrician or neonatologist for further evaluation.
What if? If a newborn has not passed meconium by 48 hours and also presents with abdominal distension and bilious (green) vomiting, the nurse should anticipate orders to keep the infant NPO (nothing by mouth) and prepare for diagnostic tests to rule out a bowel obstruction, such as Hirschsprung's disease or meconium ileus.

How to Approach the Question

Identify the core of the question: it asks for the specific name of a newborn's 'first stool'.
This is a factual recall question common in nursing, requiring knowledge of neonatal terminology.
Evaluate the options provided. Recognize that all four terms relate to newborns, making them plausible distractors.
Differentiate the function of each term. Meconium is related to the gastrointestinal system.
Contrast this with Sebum, Lanugo, and Vernix Caseosa, which are all related to the newborn's skin and integumentary system.
Select the term that specifically refers to the first bowel movement.

Concept Tested & Keywords

Concept Tested: This question tests the knowledge of specific terminology used to describe the physiological characteristics of a newborn infant.
Stem keywords: first stool, neonate
Lead-in keywords: is called

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