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Endoscopic examination for esophageal findings (visual inspection and biopsy)

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

This test involves passing a flexible tube with a light and camera through your throat to examine your esophagus, stomach, and upper intestine. A small sample of tissue may be taken for further testing if needed.

Quick summary

["Helps identify abnormalities like ulcers, inflammation, or precancerous changes in your digestive tract."]

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

Key facts at a glance

LOINC
111937-9
Short code
Endosc find Esoph Endscpy
Synonyms
Endosc find Esoph Endscpy
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
endoscopy
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 to Expect Before the Procedure

You may receive a mild sedative to relax you during the procedure. Your doctor will explain how to prepare, which often includes fasting for a few hours before the test. Wear comfortable clothing and arrange for someone to drive you home afterward.

During the Procedure

The doctor will insert a thin, flexible tube (endoscope) through your mouth into your esophagus. You may feel discomfort or gagging, but the sedative helps keep you calm. If a biopsy is taken, you’ll feel a slight pinch, but it’s usually brief.

After the Procedure

You’ll rest for a short time before being allowed to go home. Avoid eating or drinking for a few hours afterward. Contact your doctor if you experience severe pain, bleeding, or signs of infection.

Why This Test Is Done

Your doctor may recommend this test to diagnose conditions like acid reflux, ulcers, tumors, or infections in your esophagus or stomach. It can also help monitor symptoms or guide treatment decisions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a critical role in identifying and diagnosing conditions affecting the esophagus and upper gastrointestinal tract. Early detection of abnormalities can lead to timely treatment and improved outcomes.

Short name

Esophagogastroduodenoscopy (EGD) with biopsy

Frequently asked questions

How long will I need to fast before the test?
You’ll typically need to fast for 6–8 hours before the procedure, depending on your doctor’s instructions. Follow their specific guidelines to ensure accuracy and safety.
Will I feel pain during the procedure?
You may feel mild discomfort or gagging, but a sedative helps minimize pain. If a biopsy is taken, you might feel a slight pinch, but it’s usually brief and well-tolerated.
Can I drive myself home after the procedure?
No, you should not drive yourself home. Arrange for someone to accompany you and stay with you for a short time afterward to ensure you feel well.
  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