International Board of Certified Lactation Consultant (IBCLC) Practice Exam

How much weight should a baby gain per week aged 4 to 6 months?

1. 1-2 ounces

2. 4-5 ounces

3. 4-6 ounces

4. 6-8 ounces

The correct answer is: 4-6 ounces

A baby aged 4 to 6 months typically gains about 4 to 6 ounces per week. This range is considered normal during this period of growth, as infants are usually transitioning from a purely milk-based diet to potentially starting to explore solid foods. At this age, infants have often more than doubled their birth weight, and weight gain is a critical indicator of adequate nutrition and healthy development. The gain of 4 to 6 ounces reflects that although the rate of growth may slow as compared to the first few months of life, it still signifies steady progress. This weight gain range allows for individual variations, as factors like genetics or health status may influence how each baby grows. In summary, the selection is backed by growth charts and pediatric guidelines that emphasize maintaining that average gain as a marker for normal growth during these months.