IBCLC Milk Expression and Storage 2 — Questions and Answers
Question 1: When an infant is unable to nurse directly after birth, when should a mother begin pumping to best establish her milk supply?
- Within 24 hours of delivery
- Within 1 hour of delivery (Correct answer)
- When her milk transitions from colostrum on day 3-4
- After the infant's first attempted latch at the breast
Correct answer: Within 1 hour of delivery
Initiating pumping within the first hour after birth mimics the timing of a healthy newborn's first feed and maximizes early prolactin stimulation to establish milk supply.
Question 2: What is the minimum recommended number of pumping sessions per 24 hours during the early postpartum period to establish a full milk supply?
- 4–6 times
- 6–8 times
- 8–10 times (Correct answer)
- 12–14 times
Correct answer: 8–10 times
Pumping 8–10 times per 24 hours closely mirrors normal newborn nursing frequency and provides the prolactin stimulation needed to establish full milk production.
Question 3: A mother notices her stored breast milk has separated into a cream layer on top and a watery layer below. What should she be told?
- Discard the milk — separation indicates bacterial spoilage
- This is normal fat separation; gently swirl the container to recombine (Correct answer)
- Shake the container vigorously to fully re-emulsify the fat
- Separation means the milk is nutritionally depleted and formula should be added
Correct answer: This is normal fat separation; gently swirl the container to recombine
Fat naturally rises to the top of stored breast milk; gentle swirling (not shaking) safely recombines the layers without damaging delicate bioactive proteins.
Question 4: Which container type is most appropriate for long-term freezer storage of expressed breast milk?
- Standard zip-lock sandwich bags
- Hard-sided BPA-free plastic or glass containers designed for breast milk storage (Correct answer)
- Single-use disposable bottle liners
- Any food-grade BPA-free plastic container
Correct answer: Hard-sided BPA-free plastic or glass containers designed for breast milk storage
Hard-sided storage containers specifically designed for breast milk are most durable, less prone to leaks, and best maintain milk integrity during long-term freezer storage.
Question 5: How should a mother determine the correct breast pump flange size?
- Select based on bra cup size
- Measure the nipple diameter and add 2–3 mm (Correct answer)
- Choose a medium size as the standard fit for most women
- Start with the largest size and reduce until comfortable
Correct answer: Measure the nipple diameter and add 2–3 mm
The correct flange size is found by measuring the nipple diameter in millimeters and adding 2–3 mm to allow unobstructed nipple movement within the tunnel.
Question 6: An exclusively pumping mother at 6 weeks postpartum reports declining milk output. What is the most appropriate first-line intervention?
- Introduce formula supplementation to relieve pumping pressure
- Increase pumping frequency and add one daily power pumping session (Correct answer)
- Switch from a hospital-grade pump to a personal-use pump
- Reduce pumping sessions to allow breasts to refill fully between sessions
Correct answer: Increase pumping frequency and add one daily power pumping session
Increasing pumping frequency and adding power pumping mimics cluster feeding, elevating prolactin levels and stimulating greater milk production.
Question 7: Which of the following pump hygiene practices is NOT recommended by CDC guidelines for a healthy full-term infant?
- Washing all milk-contact pump parts with soap and water after each use
- Air-drying parts on a clean dedicated towel or rack
- Refrigerating assembled pump parts between sessions to avoid repeated washing
- Sterilizing all pump parts with a microwave steam bag after every pumping session (Correct answer)
Correct answer: Sterilizing all pump parts with a microwave steam bag after every pumping session
For healthy full-term infants, sterilizing after every session is unnecessary; CDC recommends daily sanitizing at most, with thorough washing after each session being the required step.
IBCLC Milk Expression and Storage 2
When an infant is unable to nurse directly after birth, when should a mother begin pumping to best establish her milk supply?