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Cell Growth Factor Activity in Tissue Culture Media

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

This test measures the biological activity of factors that promote cell growth when cultured in a lab setting. It helps assess how well certain substances support cell proliferation under controlled conditions.

Quick summary

["This test evaluates how well lab-grown cells respond to growth-promoting signals."]

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

Key facts at a glance

LOINC
96300-9
Short code
FIBRGC
Synonyms
Cell growth Fib Ql Tiss culture
Category
chemistry
Sample
serum
Container
Sterile tissue culture transport container with appropriate transport medium (e.g., RPMI 1640 or saline). Specimen must be kept sterile and transported under conditions that maintain cell viability.
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
tissue-culture
CPT
88237
SNOMED
164891000
Specimen volume
Adequate tissue biopsy specimen (minimum 2-5 mm3 of viable tissue) placed in sterile transport medium. Volume requirements vary by tissue type and laboratory protocol.
Stability
Specimen should be processed within 24 hours of collection when kept at 2-8°C. For optimal fibroblast viability, process within 4-6 hours of collection. Do not freeze tissue specimens intended for culture.
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
72–336 hours
Order
routine

Why Is This Test Done?

Doctors may order this test to study how specific proteins, hormones, or other substances influence cell growth in research or clinical settings, such as evaluating treatments for cancer, autoimmune diseases, or tissue engineering.

What Does the Test Involve?

A small sample of cells is placed in a lab dish with a test substance (like serum, plasma, or conditioned media) and monitored over time. The test measures how much the cells grow or divide, indicating the presence of growth-promoting factors.

Sample Collection and Preparation

The sample (often serum, plasma, or tissue culture media) is collected and processed in a lab. The cells are then exposed to this sample in a controlled environment to observe their growth response.

What Are the Results Used For?

Results help researchers or clinicians understand how certain biological factors influence cell behavior, which can guide treatment decisions or improve lab-based therapies.

Reference range

Presence of fibroblast growth in tissue culture: Detected (Positive) or Not Detected (Negative). Reportable as qualitative result indicating successful fibroblast isolation and proliferation.N/A

Specimen: serum

No special patient preparation required. Specimen collection (biopsy or tissue sample) should be performed using sterile technique by qualified personnel. Inform laboratory of any recent antibiotic therapy, as this may affect culture results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: This test is primarily used in research or specialized clinical studies to assess growth factor activity in conditions where cell proliferation is abnormal or under investigation. It may not be directly applicable to routine patient care but can inform advanced medical research.

Short name

Cell Growth Factor Assay

Frequently asked questions

Will I Need to Prepare for This Test?
No special preparation is typically required, but follow your healthcare provider’s instructions if the sample is collected from you (e.g., fasting for serum/plasma).
How Long Will Results Take?
Results may take several days to weeks, depending on the lab’s workflow and the complexity of the study. Your provider will contact you once they are ready.
What If My Results Are Abnormal?
If results are outside expected ranges for research purposes, they may indicate unusual growth factor activity, prompting further investigation by a specialist in the field.
  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