1. What is Birth Weight Percentage Loss?

Birth weight percentage loss is a measure of how much weight a newborn has lost compared to their birth weight. It's an important indicator of neonatal health and feeding adequacy in the first days of life.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Birth Weight} \) — The baby's weight at birth (kg)
• \( \text{Current Weight} \) — The baby's current weight (kg)

Explanation: The formula calculates what percentage of the original birth weight has been lost.

3. Importance of Monitoring Weight Loss

Details: Monitoring weight loss helps identify potential feeding problems, dehydration, or other health issues. Excessive weight loss may indicate the need for intervention or supplemental feeding.

4. Using the Calculator

Tips: Enter both weights in kilograms. Use accurate measurements taken with the same scale for best results. Typically used in the first 2 weeks of life.

5. Frequently Asked Questions (FAQ)

Q1: What is considered normal weight loss for newborns?
A: Most newborns lose 5-7% of birth weight in first 3-5 days, with breastfed babies often losing more. Loss >10% may warrant evaluation.

Q2: When should I be concerned about weight loss?
A: Consult a pediatrician if loss exceeds 10% or if baby isn't regaining birth weight by 2 weeks.

Q3: How often should weight be checked?
A: Typically checked at birth, 24-48 hours after birth, and at first pediatric visit (3-5 days old).

Q4: Does the type of feeding affect weight loss?
A: Breastfed babies often lose more weight initially than formula-fed babies but catch up by 2 weeks.

Q5: What factors can affect weight loss accuracy?
A: Different scales, timing of feedings, clothing/diapers, and meconium passage can all affect measurements.