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Vitamin D Binding Protein (DBP) Mass Concentration

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

This test measures the amount of Vitamin D Binding Protein (DBP) in your blood. DBP helps transport vitamin D and other steroids in the bloodstream.

Quick summary

["Understanding your DBP levels can help assess how well your body is processing vitamin D and related hormones."]

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

Key facts at a glance

LOINC
49078-9
Short code
FLUBV IgM CSF-mCnc
Synonyms
FLUBV IgM CSF-mCnc
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms related to vitamin D deficiency, kidney disease, or conditions affecting protein metabolism. It may also be used in research or specialized clinical settings to evaluate protein function in blood.

What to Expect Before the Test

No special preparation is typically needed. You may be asked to fast for a few hours before the blood draw, but this is not always required. Bring any medications or supplements you take regularly to your appointment.

What Happens During the Test

A healthcare professional will draw blood from a vein in your arm. The process usually takes a few minutes. You may feel a slight pinch, but it should not cause significant discomfort.

What the Results Mean

Results are interpreted in the context of your overall health and medical history. Elevated levels may indicate certain genetic conditions or kidney issues, while very low levels might suggest protein disorders. Your doctor will discuss these findings with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Vitamin D Binding Protein

Frequently asked questions

What Does This Test Measure?
This test measures the concentration of Vitamin D Binding Protein (DBP) in your blood. DBP is a protein that binds to vitamin D and other steroids, helping them circulate in the bloodstream. It plays a role in hormone transport and may be relevant in conditions affecting protein synthesis or kidney function.
How Might My Results Affect My Treatment?
While DBP levels alone are not typically used to guide treatment for vitamin D deficiency, they may be part of a broader evaluation if you have symptoms or conditions linked to protein abnormalities. Your doctor may consider other tests and clinical findings to determine the best course of action.
Can I Fast Before This Test?
Fasting is not always required for this test, but your provider may advise you to do so if they suspect it will affect your results. Always follow your healthcare provider’s specific instructions for preparation.
  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