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Malate and Creatinine, Urine/Stool

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

Measures malate and creatinine in a urine and/or stool specimen. The exact specimen and reporting method should be confirmed with the laboratory.

Quick summary

["This specialized test measures metabolic substances and helps assess how the results relate to the submitted specimen."]

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

Key facts at a glance

LOINC
25113-2
Short code
Malate/Creat Ur-sRto
Synonyms
Malate/Creat 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 malate and creatinine in urine, stool, or both, depending on the order. Malate is an organic acid involved in energy metabolism, while creatinine is a breakdown product used in evaluating kidney excretion and specimen concentration.

Why might I need this test?

This test may be ordered when a clinician is evaluating a metabolic or digestive concern. Creatinine may also help determine whether a urine or stool collection is sufficiently concentrated or complete for accurate interpretation.

How is the test performed?

A urine and/or stool sample is collected and analyzed in the laboratory using a validated method. The laboratory may report the amount or concentration of each substance and any calculated values specified by the test protocol.

How do I prepare for the test?

Follow the collection instructions provided by the laboratory or clinician, including timing, container type, and any fasting requirements. If a timed collection is ordered, collect all urine and/or stool during the specified period and label the container accurately.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Malate and creatinine, urine/stool

Frequently asked questions

Is this the same as a routine urine creatinine test?
No. This test includes malate and may use a specimen or reporting method that differs from a routine standalone urine creatinine test.
Do I need to fast before this test?
Fasting is usually not required unless the ordering clinician or laboratory specifically says so. Follow the instructions included with your test order.
Can I collect the urine or stool at home?
Collection at home is often possible, but the required container, timing, refrigeration, and transport method should be confirmed beforehand. An incomplete or incorrectly stored collection can affect the results.
  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