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Duodenal Endoscopy with Biopsy (Upper GI Endoscopy with Duodenal Tissue Sampling)

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

This procedure involves examining the inside of your upper digestive tract, including the esophagus, stomach, and first part of the small intestine (duodenum), using a thin, lighted tube called an endoscope. Small tissue samples (biopsies) may be taken from the duodenum for further laboratory analysis.

Quick summary

["Helps diagnose and evaluate conditions affecting the upper digestive tract."]

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

Key facts at a glance

LOINC
111950-2
Short code
Find Duodenum Endscpy
Synonyms
Find Duodenum 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 sedative to help you relax during the procedure. Your doctor will explain the steps, including fasting for several hours beforehand. Inform your healthcare provider about any medications you’re taking, as some may need to be temporarily stopped.

During the Procedure

The endoscope is carefully inserted through your mouth into your digestive tract. If biopsies are taken, small tissue samples will be collected from the duodenum. The procedure usually takes 15–30 minutes and is performed in a hospital or clinic setting.

Aftercare and Recovery

You may feel some mild discomfort or bloating after the procedure. Avoid eating or drinking until fully awake. Follow your doctor’s instructions for pain management and activity restrictions. Check with your provider if you experience severe pain, bleeding, or signs of infection.

Why This Test Is Done

This test helps identify issues like inflammation, infections, tumors, or structural abnormalities in the duodenum. It may be recommended if you have symptoms such as unexplained weight loss, persistent nausea, vomiting, or digestive bleeding.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Upper GI Endoscopy with Biopsy

Frequently asked questions

What are the possible risks or complications of this procedure?
Common risks include mild discomfort, sore throat, or temporary bloating. Rarely, complications like bleeding, perforation of the digestive tract, or allergic reactions to sedation may occur. Your healthcare provider will discuss these risks with you before the procedure.
How long will it take to get the results of the biopsy samples?
Biopsy results are typically reviewed by a pathologist and may take several days to weeks, depending on the complexity of the samples. Your doctor will coordinate with the lab to provide updates and next steps once results are available.
Can I eat or drink before the endoscopy?
Yes, you will need to fast for several hours before the procedure, usually 6–8 hours for solid foods and 2 hours for liquids. Follow your doctor’s specific fasting instructions to ensure accuracy and safety.
  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