: Xylose Reductase to Sorbitol, Spine Fluid, Immunoassay
: This entry describes a measurement of xylose reductase, an enzyme, in a spine (spinal fluid) specimen using an immunoassay method. The slug is a compressed, nonstandard abbreviation and the analyte test should be interpreted generically.
[": This is a specialized enzyme measurement in spinal fluid; exact clinical use and reference values are not established from the abbreviation alone."]
Key facts at a glance
- LOINC
- 39408-0
- Short code
- XR tomo T-spine AP
- Synonyms
- XR tomo T-spine AP
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr-tomography
- 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
: What This Test Measures
: The slug appears to encode an enzyme called xylose reductase measured in a spinal fluid specimen by immunoassay. Because the abbreviation is compressed and nonstandard, it should be treated as a generic description of the analyte rather than a definitive standard test name.
: Specimen Type
: The specimen is described as spine fluid, which usually refers to cerebrospinal fluid collected during a lumbar puncture. Specimen handling and collection details should be confirmed with the performing laboratory.
: Testing Method
: The slug includes a method indicator consistent with immunoassay. Immunoassays use antibodies to detect specific proteins or enzymes, but the exact assay format and performance characteristics cannot be determined from this compressed code.
: Interpretation Limits
: No numeric reference ranges or decision thresholds are provided here because they depend on the specific laboratory method and population. Results should be interpreted by a clinician in the context of the patient's full clinical picture.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
: Xylose reductase is an enzyme involved in polyol pathway metabolism, converting xylose and related sugars to their corresponding polyols. Measuring it in spinal fluid is not a common routine test, and its clinical significance for patient care is not well established from this slug alone. Any abnormal result should prompt discussion with the ordering clinician and confirmation with the performing laboratory.
Short name
: Spine Xylose Reductase
Frequently asked questions
: Is this a standard routine lab test?
: What does the immunoassay method mean for my results?
: Can I compare this result to results from another lab?
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