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HelpTest Code TALDO Polyols, Quantitative, Urine
Reporting Name
Polyols, QN, UPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Useful For
Diagnosing deficiencies of transaldolase, transketolase, sedoheptulose, or ribose-5-phosphate isomerase
Method Name
Gas Chromatography Mass Spectrometry (GC-MS)
Necessary Information
1. Patient's age is required.
2. Biochemical Genetics Patient Information (T602) is recommended, but not required, to be filled out and sent with the specimen to aid in the interpretation of test results.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Specimen Volume: 2 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Specimen Type
UrineSpecimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
ERYTHRITOL
≤11 months: <220 mmol/mol creatinine
1-3 years: <267 mmol/mol creatinine
4-17 years: <171 mmol/mol creatinine
>or =18 years: <99 mmol/mol creatinine
ARABINITOL
≤11 months: <140 mmol/mol creatinine
1-3 years: <149 mmol/mol creatinine
4-17 years: <97 mmol/mol creatinine
>or =18 years: <51 mmol/mol creatinine
RIBITOL
≤11 months: <31 mmol/mol creatinine
1-3 years: <31 mmol/mol creatinine
4-17 years: <17 mmol/mol creatinine
>or =18 years: <11 mmol/mol creatinine
SEDOHEPTULOSE
≤11 months: <76 mmol/mol creatinine
1-3 years: <27 mmol/mol creatinine
4-17 years: <28 mmol/mol creatinine
>or =18 years: <22 mmol/mol creatinine
Interpretation
An interpretive report will be provided.
All profiles are reviewed by the laboratory director and interpretation is based on pattern recognition. A detailed interpretation is given, including an overview of the results and of their significance, a correlation to available clinical information, elements of differential diagnosis, recommendations for additional biochemical testing and in vitro confirmatory studies (enzyme assay, molecular analysis), name and phone number of key contacts who may provide these studies at Mayo Clinic or elsewhere, and a phone number to reach one of the laboratory directors in case the referring physician has additional questions.
Day(s) Performed
Tuesday; Friday
Report Available
3 to 7 daysTest Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
82542
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TALDO | Polyols, QN, U | 74447-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 35824 | Erythritol | 48107-7 |
| 35825 | Arabinitol | 47829-7 |
| 35826 | Ribitol | 47884-2 |
| 35827 | Sedoheptulose | 78967-7 |
| 35829 | Interpretation (TALDO) | 74448-2 |
| 35830 | Reviewed By | 18771-6 |
Forms
1. Biochemical Genetics Patient Information (T602)
2. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.