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Humerus Length Measurement (Bone Length Assessment)

Published: August 9, 2026Updated: August 16, 2026

This test measures the length of your upper arm bone (humerus) using imaging techniques. It helps assess bone development, growth patterns, or structural abnormalities.

Quick summary

["This test evaluates bone growth or structural health in the upper arm."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
11966-9
Short code
Fet Humerus Length US.meas
Synonyms
Fet Humerus Length US.meas
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
us-measured
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

Why This Test Is Done

Your healthcare provider may order this test if you have concerns about bone growth, developmental delays, or conditions affecting bone development. It could also be part of a general physical examination or screening for skeletal issues.

What to Expect Before the Test

You’ll likely have an X-ray or similar imaging scan of your upper arm. No special preparation is needed, but inform your provider about any metal implants or medications you’re taking.

During the Test

The procedure involves placing your arm in a position for imaging. It’s quick and painless, though you may feel a slight pinch from the imaging device. You’ll need to hold still for a few seconds while the scan is taken.

After the Test

You can return to your normal activities immediately. Results are typically reviewed by a radiologist or healthcare provider who will discuss findings with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Will I need to fast before this test?
No fasting is required for this test. Imaging tests like this do not involve blood or urine samples, so dietary restrictions don’t apply.
How long will it take to get my results?
Results are usually available within a few days to a week, depending on the imaging center’s workflow. Your provider will contact you with the findings once they’re ready.
Can I eat or drink before the test?
Yes, you can eat and drink normally before this test. Since it’s not a blood or urine test, no restrictions apply.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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