Timed Breast Milk Intake — Whole-Bottle Feeding Assessment, 2-Week Follow-Up
A timed feeding assessment that estimates how much breast milk an infant consumes from a whole bottle during a 2-week period.
["This assessment helps determine whether an infant’s milk intake is adequate when interpreted alongside growth and hydration."]
Key facts at a glance
- LOINC
- 63969-0
- Short code
- Baby to bed w bottle 2W times IFPS-II
- Synonyms
- Baby to bed w bottle 2W times IFPS-II
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 20
- Ref high
- 400
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ifps-ii
- CPT
- 82670
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What is this test?
This is a timed feeding assessment of breast milk intake. The amount offered and the amount left in the bottle are compared to estimate how much milk the infant consumed.
Why might I need this test?
A clinician may recommend it to evaluate feeding adequacy in a growing infant, especially when there are concerns about poor weight gain, dehydration, or inconsistent feeding. It provides information about intake rather than diagnosing a disease by itself.
How is the test performed?
Usually, the amount of milk placed in the bottle is recorded or measured before a feeding, and the amount remaining afterward is measured. When the same bottle and scale are used, the difference can provide an estimate of the milk consumed.
How do I prepare for the test?
Follow the feeding schedule and recording instructions provided by your clinician. Keep the usual feeding routine, use consistent measuring equipment, and note vomiting, illness, urine output, and diaper changes so they can be shared with the care team.
Reference range
Premenopausal: 20-400 pg/mL; Postmenopausal: <30 pg/mLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
An estimated intake below what is expected for an infant may prompt review of feeding technique, milk supply, formula supplementation, or hydration. Results are best interpreted with the infant’s weight trend, growth pattern, health history, and clinical examination because normal intake varies among infants.
Short name
Timed breast milk intake
Frequently asked questions
Is this a blood or urine laboratory test?
Do I need to weigh every feeding?
What if the infant drinks different amounts at each feeding?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy