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Ethanolamine/Creatinine Ratio, 24-Hour Urine

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

Measures urinary ethanolamine relative to creatinine to assess excretion of this amino acid-related metabolite.

Quick summary

["This test evaluates how much ethanolamine is excreted in urine compared with creatinine."]

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

Key facts at a glance

LOINC
25911-9
Short code
Ethanolamine/Creat 24h Ur-sRto
Synonyms
Ethanolamine/Creat 24h Ur-sRto
Category
kidney
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What is this test?

This test measures ethanolamine, a compound involved in amino acid metabolism, in urine collected for 24 hours. The result is compared with the amount of creatinine in the same collection.

Why might I need this test?

It may be ordered as part of an evaluation for an inherited condition affecting amino acid or other metabolic pathways. It can also help assess the effect of treatment or nutritional supplementation.

How is the test performed?

You collect all urine produced during a 24-hour period in a labeled container provided by the laboratory. The total volume is recorded, and the laboratory measures ethanolamine and creatinine.

How do I prepare for the test?

Follow the laboratory's collection instructions and any diet or supplement instructions provided by your clinician. On the first morning, empty your bladder and discard that urine, then collect every subsequent sample for exactly 24 hours, including the final sample.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

24-Hour Urine Ethanolamine/Creatinine Ratio

Frequently asked questions

What does the creatinine comparison show?
Creatinine is used as a reference measure of how much material is being excreted. Comparing ethanolamine with creatinine helps interpret the result without relying only on urine concentration.
Do I need to fast for this test?
Fasting is usually not required, but your clinician may recommend avoiding certain supplements or making other dietary changes. Follow any specific instructions from the laboratory.
What if part of the urine collection is missed?
The result may be unreliable if urine is missed or the collection lasts longer or less than 24 hours. Ask the laboratory whether you need to repeat the collection.
  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