1. What is Weight Loss Percentage?

The weight loss percentage calculation measures how much weight a baby has lost relative to their birth weight. This is particularly important for monitoring newborns in the first days after birth.

2. How Does the Calculator Work?

The calculator uses the weight loss percentage formula:

Where:

• \( birth\_weight \) — Baby's weight at birth (kg)
• \( current\_weight \) — 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 in newborns is crucial as excessive weight loss (typically >10%) may indicate feeding problems or other health issues requiring medical attention.

4. Using the Calculator

Tips: Enter birth weight and current weight in kilograms. Both values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is normal weight loss for newborns?
A: Most newborns lose 5-7% of birth weight in first few days, typically regaining it by 10-14 days. Loss >10% may warrant evaluation.

Q2: How often should weight be measured?
A: For newborns, weight should be measured at birth, then daily for first week if there are concerns, otherwise at pediatric visits.

Q3: When should I be concerned about weight loss?
A: Consult a pediatrician if loss exceeds 10%, if baby isn't regaining weight by day 5, or if other concerning symptoms are present.

Q4: Does this apply to premature babies?
A: Premature babies may lose more weight (up to 15%) and take longer to regain it. Their care should be guided by neonatologists.

Q5: How accurate should measurements be?
A: Use a calibrated infant scale for accuracy, especially when monitoring small weight changes in newborns.