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Serum or plasma concentration of keratinocyte growth factor (KGF)

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

This test measures the amount of keratinocyte growth factor (KGF) in your blood. KGF is a protein that helps promote the growth and repair of skin cells.

Quick summary

["KGF supports skin health and wound healing; levels may be checked for conditions affecting skin or healing processes."]

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

Key facts at a glance

LOINC
36801-9
Short code
MRA Knee ves-R
Synonyms
MRA Knee ves-R
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
0
Ref high
20
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr-angio
CPT
85651
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 Keratinocyte Growth Factor (KGF)?

Keratinocyte growth factor (KGF) is a protein produced by cells in your body that plays a key role in stimulating the growth and repair of skin cells. It helps maintain healthy skin and aids in wound healing. KGF is part of a group of proteins called cytokines, which help regulate communication between cells.

Why Might You Need This Test?

Your healthcare provider may order a KGF test if you have symptoms or conditions that could be linked to abnormal skin cell growth or impaired wound healing, such as chronic wounds, skin ulcers, or certain skin diseases. It may also be used in research or clinical trials studying skin regeneration.

How Is the Test Performed?

A blood sample is taken from a vein, usually in your arm, using a needle. The blood is then sent to a lab for analysis. The lab measures the concentration of KGF in your serum or plasma.

What Do Results Mean?

Interpreting KGF results depends on clinical context and reference ranges, which may vary by lab. Abnormal levels could suggest conditions affecting skin cell function or healing, but results should be discussed with your doctor.

Reference range

Adult males: 0-15 mm/hr; Females: 0-20 mm/hrN/A

Specimen: serum

No special preparation required. CRP may be affected by acute illness.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

KGF Level

Frequently asked questions

How often will I need to retest?
Retesting frequency depends on your treatment plan, symptoms, or ongoing medical conditions. Your healthcare provider will determine if follow-up testing is needed and how often.
What are the possible side effects of this test?
Most people experience only mild discomfort or bruising at the injection site. Rarely, there may be a slight reaction like swelling or redness.
Can I eat or drink before this test?
Typically, you can eat and drink normally before this blood test unless your provider gives specific instructions.
  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