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Geisinger Medical Laboratories Test Catalog
5-HYDROXYINDOLEACETIC ACID (5-HIAA), RANDOM URINE WITH CREATININE |
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Geisinger Epic Procedure Code: LAB1492
Geisinger Epic ID: 15007
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SPECIMEN COLLECTION |
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Specimen type: |
Random urine | |
Preferred collection container: |
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Specimen required: |
10 mL random urine with 6N HCl, submitted in a plastic, screw-cap container; minimum 5 mL. | |
Special notes: |
This test needs immediate acidification and can only be collected at Hospital sites. | |
Patient preparation: |
Patient should avoid food high in indoles (avocado, banana, tomato, plum, walnut, pineapple, and eggplant). | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
After urine collection, add 6N HCl to maintain a pH below 3. Urine without preservative is acceptable if pH is below 6 and the sample is shipped frozen. Record patients age on test request form and urine vial. | |
Transport temperature: |
Preserved: Refrigerated. Unpreserved: Frozen | |
Specimen stability: |
Preserved: Room temperature: 7 days. Refrigerated: 30 days. Frozen: 30 days.
Unpreserved: Frozen: 30 days |
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Rejection criteria: |
pH >3.0 received unfrozen | |
TEST DETAILS |
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Additional information: |
Beta Blockers, Atenolol, Bromocriptine, Bronchodilators, Clonidine, Digoxin, Isoniazid, L-Dopa, Labetelol, Methyldopa, Monoamine Oxidase Inhibitors, Nitroglycerin, Sympathomimetic Amines, Phenobarbital, Phenothiazines, Phentolamine, Reserprine, Salicylates, Tricyclic Antidepressants | |
CPT code(s): |
83497, 82570 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
5-Hydroxyindoleacetate/Creatinine, Random Urine | |
Methodology: |
High Performance Liquid Chromatography (HPLC) Electrochemical detection |
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Synonyms: |
5-HIAA, Carcinoid Screen, Serotonin 5-HIAA random urine, HIAAR Quest test code 1648
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Clinical significance: |
Values above 10 mg/24 hrs occur in carcinoid syndrome. Slight elevations also occur in nontropical sprue and after reserpine administration. | |