Gastric Cytology (Gastroscopic Biopsy Cytology)
This test examines cells collected from your stomach lining during an endoscopy to check for abnormalities like inflammation, infection, or early signs of cancer.
["A gastroscopic biopsy helps diagnose stomach issues by analyzing tissue samples directly from your stomach."]
Key facts at a glance
- LOINC
- 11069-2
- Short code
- Cyto Gast
- Synonyms
- Cyto Gast
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 10
- Ref high
- 40
- Critical range
- — – 500 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- cyto-stain
- CPT
- 84484
- SNOMED
- 302774002
- 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 Involves
During an endoscopy, a thin tube with a light and camera is passed through your throat into your stomach. A small sample of cells is taken from the stomach lining for testing. This procedure is usually done under sedation to keep you comfortable.
Why It’s Done
Your doctor may recommend this test if you have symptoms like persistent stomach pain, unexplained weight loss, nausea, vomiting, or blood in your stool. It can also be used to investigate conditions like gastroesophageal reflux disease (GERD), stomach ulcers, or suspected precancerous changes.
What to Expect Before the Test
You may need to fast for a few hours before the procedure, but follow your doctor’s specific instructions. Avoid smoking and heavy meals to ensure accuracy. Inform your doctor about any medications you’re taking, as some may need to be temporarily stopped.
What to Expect During the Test
The endoscopy is typically done in a hospital or clinic setting. You’ll receive sedation to relax you, and you may feel some discomfort but should not experience pain. The procedure usually takes about 15 to 30 minutes.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is crucial for detecting early signs of stomach cancer, Barrett’s esophagus, or other gastrointestinal conditions. Abnormal findings can guide treatment plans, such as medication adjustments, lifestyle changes, or further diagnostic procedures like biopsies or imaging studies.
Frequently asked questions
How long will I need to rest after the test?
Will I feel any pain during the procedure?
What if my test results are abnormal?
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 17, 2026. · Read our editorial policy