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Isocitrate and Creatinine — Turbidimetric Measurement

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

A laboratory test measuring isocitrate and creatinine in a patient sample. The abbreviated order does not clearly identify the specimen or whether a ratio is calculated.

Quick summary

["This test measures isocitrate and creatinine, but the exact specimen and reporting method should be confirmed with the ordering laboratory."]

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

Key facts at a glance

LOINC
108481-3
Short code
Isocitrate/Creat Msmt Ur
Synonyms
Isocitrate/Creat Msmt Ur
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 isocitrate, a citrate-related metabolic compound, and creatinine, a waste product commonly used to assess kidney filtering. The abbreviated test name does not clearly specify the specimen or whether the results are reported separately or as a ratio.

Why might I need this test?

Creatinine may be measured to help evaluate kidney function, hydration, or filtration. Isocitrate may provide information about citrate metabolism, which can be relevant in certain kidney, metabolic, or stone-related evaluations.

How is the test performed?

A laboratory analyzes the submitted specimen using a turbidimetric method, which estimates the amount of a substance by measuring how it scatters light. Depending on the exact order, the laboratory may report separate values or calculate a ratio.

How do I prepare for the test?

Preparation depends on whether the specimen is blood or urine and whether a timed urine collection is required. Confirm the specimen and collection instructions with the ordering clinician or laboratory before collection.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Isocitrate and creatinine

Frequently asked questions

Does this test require a blood or urine sample?
The abbreviated test name does not clearly identify the specimen. Check the test order or ask the laboratory whether a blood or urine sample is required.
Is this the same as a routine creatinine test?
It includes creatinine, which is commonly used to assess kidney filtering, but it also measures isocitrate. A standard creatinine test may use a different specimen and reporting method.
What does an abnormal isocitrate result mean?
It may indicate altered citrate metabolism or a condition affecting the kidneys, but it is not diagnostic by itself. Your clinician should interpret it alongside the rest of your medical evaluation.
  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