Creatvitfmcnc
A test that measures creatinine levels in the vitreous fluid of the eye to assess kidney function or help estimate time of death in forensic cases.
{"Measures creatinine in the eye's vitreous fluid","Used primarily in forensic medicine to estimate postmortem interval","Helps assess kidney function when blood/urine samples unavailable","Sample is collected from the eye after death","Results are compared with normal reference ranges"}
Key facts at a glance
- LOINC
- 12584-9
- Short code
- CREA-VITR
- Synonyms
- Creat Vitf-mCnc
- Category
- kidney
- Sample
- serum
- Container
- Sterile airtight container, preferably glass tube
- Units
- not specified
- Ref low
- 0.5
- Ref high
- 1.5
- Critical range
- — – 2.5 not specified
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- ≥ 18 years
- Method
- Enzymatic method or Jaffe kinetic reaction
- CPT
- 82565
- SNOMED
- 271563006
- Specimen volume
- 0.5-1.0 mL of vitreous fluid
- Stability
- Room temperature: 24 hours; Refrigerated (2-8°C): 72 hours; Frozen (-20°C): several weeks
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 24–72 hours
- Order
- routine
What is this test?
The Vitreous Fluid Creatinine test measures the amount of creatinine, a waste product from muscle metabolism, in the vitreous fluid—the clear, gel-like substance that fills the eye between the lens and the retina. This test is primarily used in forensic pathology but may also provide information about kidney function in certain clinical situations.
How is the sample collected?
The sample is collected from the vitreous humor of the eye using a needle after death (in forensic cases) or in rare clinical situations where other bodily fluids cannot be obtained. The procedure is performed by a trained medical professional or pathologist.
What do the results mean?
Creatinine levels in vitreous fluid can indicate how well the kidneys were functioning before death. Elevated levels may suggest kidney dysfunction or reduced kidney function. In forensic medicine, analyzing vitreous fluid creatinine, along with other markers, can help estimate the approximate time of death.
Reference range
0.5-1.5 mg/dLnot specified
None; typically postmortem vitreous aspiration specimen
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
Is this test painful?
How long does it take to get results?
Do I need to fast before this test?
Can this test diagnose kidney disease?
Sources
- 1
- 2
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy