Body Weight Percentile Adjusted for Age (75th Percentile)
This test measures how your weight compares to typical weight ranges for children of your age, adjusted for the 75th percentile. It helps track healthy growth patterns over time.
["This test helps monitor whether your weight is within expected ranges for your age and growth stage."]
Key facts at a glance
- LOINC
- 11773-9
- Short code
- [Prctl] Bdy weight.75th GA Corr
- Synonyms
- [Prctl] Bdy weight.75th GA Corr
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- estimated-pop-birth-wgt-gestational-age-corr-ref
- 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 This Test Measures
Your healthcare provider uses this test to compare your current weight to what is considered healthy for your age, specifically at the 75th percentile. Percentiles are statistical measures that show how your weight ranks among children of the same age. For example, if your weight falls at the 75th percentile, it means you weigh as much as 75% of children your age.
Why It Matters in Pediatric Care
Tracking weight percentiles is crucial for early detection of potential weight-related concerns, such as underweight or overweight, which can affect growth, development, and overall health. It helps providers identify trends and intervene if growth patterns deviate from expected norms.
How It’s Performed
This test is not drawn from a blood, urine, or other bodily specimen. Instead, it is calculated using your height and weight measurements recorded by your healthcare provider during routine check-ups. No sample is collected for this specific test.
What to Expect Before or After
There are no special preparations needed for this test. You may be asked to provide your height and weight during a regular doctor’s visit or clinic appointment. No fasting or restrictions apply.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is primarily used in pediatric settings to monitor growth trajectories and identify potential issues early. While it doesn’t diagnose specific conditions, it provides a snapshot of whether your weight is on track for your age. If your weight percentile falls outside typical ranges, further evaluation may be recommended to explore underlying causes, such as nutritional needs, medical conditions, or developmental factors.
Short name
Age-Adjusted Body Weight Percentile
Frequently asked questions
How often is this test done?
Does this test require a blood draw?
Can this test help detect health problems?
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