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HelpTest Code AAIERM Amino Acids, Quantitative, Random, Urine
Additional Codes
| EPIC EAP | Mayo |
| LAB355 | AAPD |
Reporting Name
Amino Acids, QN, Random, UUseful For
Evaluating patients with possible inborn errors of metabolism using random urine specimens
May aid in evaluation of endocrine disorders, liver diseases, muscle diseases, neoplastic diseases, neurological disorders, nutritional disturbances, kidney failure, and burns
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Portions of this test are covered by patents held by Quest Diagnostics
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineAdditional Testing Requirements
Not all patients with homocystinuria will be detected by this assay. If homocystinuria is a concern, order CMMPP / Cobalamin, Methionine, and Methylmalonic Acid Pathways, Plasma or HCYSP / Homocysteine, Total, Plasma or HCYSS / Homocysteine, Total, Serum in tandem with this test.
Necessary Information
1. Patient's age is required.
2. Include family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information.
3. If prolidase deficiency is a concern, indicate on the amino acid order "Pretreat with acid hydrolysis prior to analysis". The acid hydrolysis will break up in vitro proline and hydroxyproline containing dipeptides, which are cleaved in vivo by prolidase.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Specimen Volume: 2 mL
Collection Instructions: Collect a random urine specimen.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Frozen (preferred) | 70 days |
| Refrigerated | 14 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Day(s) Performed
Monday through Friday
CPT Code Information
82139
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| AAPD | Amino Acids, QN, Random, U | 35087-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 3481 | Interpretation (AAPD) | 49248-8 |
| 3452 | Taurine | 28595-7 |
| 3456 | Asparagine | 28603-9 |
| 3455 | Serine | 30058-2 |
| 34477 | Hydroxyproline | 28601-3 |
| 3460 | Glycine | 30066-5 |
| 3457 | Glutamine | 30056-6 |
| 34478 | Aspartic Acid | 30061-6 |
| 34479 | Ethanolamine | 28605-4 |
| 3477 | Histidine | 30047-5 |
| 3454 | Threonine | 30057-4 |
| 3459 | Citrulline | 30161-4 |
| 34480 | Sarcosine | 28610-4 |
| 3472 | Beta-alanine | 28588-2 |
| 3461 | Alanine | 30068-1 |
| 3458 | Glutamic Acid | 30059-0 |
| 3476 | 1-Methylhistidine | 28606-2 |
| 3478 | 3-Methylhistidine | 28594-0 |
| 34481 | Argininosuccinic Acid | 32229-7 |
| 34483 | Homocitrulline | 32248-7 |
| 3480 | Arginine | 30062-4 |
| 3462 | Alpha-aminoadipic Acid | 28598-1 |
| 34484 | Gamma-amino-n-butyric Acid | 28593-2 |
| 3473 | Beta-aminoisobutyric Acid | 28602-1 |
| 3463 | Alpha-amino-n-butyric Acid | 28590-8 |
| 34485 | Hydroxylysine | 30050-9 |
| 3483 | Proline | 30067-3 |
| 3474 | Ornithine | 30049-1 |
| 3466 | Cystathionine | 28599-9 |
| 3465 | Cystine | 30065-7 |
| 3475 | Lysine | 30048-3 |
| 3467 | Methionine | 30063-2 |
| 3464 | Valine | 30064-0 |
| 3470 | Tyrosine | 30054-1 |
| 3468 | Isoleucine | 30052-5 |
| 3469 | Leucine | 30053-3 |
| 3471 | Phenylalanine | 30055-8 |
| 34486 | Tryptophan | 28608-8 |
| 34487 | Allo-isoleucine | 73908-6 |
| 113130 | Reviewed By | 18771-6 |
Test 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.Report Available
3 to 5 daysForms
If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.