1. What is Infant Weight Loss Percentage?

The infant weight loss percentage calculates how much weight a newborn has lost compared to their birth weight. This is important for monitoring neonatal health, especially in the first days after birth.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{Birth Weight} \) — The infant's weight at birth (kg)
• \( \text{Current Weight} \) — The infant'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: Newborns typically lose 5-7% of birth weight in first days, with 10% often considered the upper limit of normal. Excessive loss may indicate feeding problems or other health issues.

4. Using the Calculator

Tips: Enter birth weight and current weight in kilograms. Both values must be positive numbers. The calculator will show the percentage of weight lost.

5. Frequently Asked Questions (FAQ)

Q1: What is normal weight loss for a newborn?
A: Most newborns lose 5-7% of birth weight in first 3-5 days, then regain by 10-14 days. Loss >10% may warrant evaluation.

Q2: When should I be concerned about weight loss?
A: Consult a pediatrician if loss exceeds 10%, continues beyond 5 days, or if baby shows signs of dehydration.

Q3: How often should weight be measured?
A: First weight check at 3-5 days old, then as recommended by healthcare provider based on initial results.

Q4: Does breastfeeding affect weight loss?
A: Breastfed babies may lose slightly more initially but should follow similar patterns. Proper latch and feeding frequency are crucial.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise when accurate weights are entered. Ensure scales are properly calibrated.