Therapeutic Drug Level Following Endoscopic Procedure (Qualitative or Quantitative Measurement)
This test measures the concentration or presence of a medication in your body after it was administered during an endoscopic procedure. It helps ensure the drug is at an appropriate level for its intended effect.
["This test helps confirm the right amount of medication is working as expected after a procedure."]
Key facts at a glance
- LOINC
- 19814-3
- Short code
- Therapeutic results Imp Endoscopy
- Synonyms
- Therapeutic results Imp Endoscopy
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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
Why This Test Is Done
Doctors may order this test if you received a medication during an endoscopic procedure to monitor its effectiveness or adjust your treatment plan. It helps ensure the drug reaches the right concentration in your body to treat conditions like acid reflux, bleeding ulcers, or other gastrointestinal issues.
What to Expect Before the Test
No special preparation is usually needed. You may be asked to fast for a few hours before the procedure, but this depends on the type of test and your doctor’s instructions. Bring any medications you’re taking to your appointment.
What the Test Involves
During the endoscopic procedure, a small sample of your blood or other bodily fluid (like saliva or tissue) may be collected. The lab will analyze the sample to measure the medication’s concentration. The test may be qualitative (yes/no presence) or quantitative (exact amount).
What the Results Mean
Results will show whether the medication is present at the right level for your treatment. If the concentration is too low, your doctor may recommend a higher dose or additional medication. If it’s too high, they may adjust your treatment plan to avoid side effects.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
How long will I need to wait for my results?
What are the possible side effects of the medication being tested?
Can I drink or eat anything before the test?
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 16, 2026. · Read our editorial policy