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HelpTest Code LAB3536 Vanilmandelic acid
Clinical System Name
Vanilmandelic acid
Vanillylmandelic acid
Synonyms
VMA
Sample Requirements
Specimen: Whole blood
Container(s): Gold SST, Red, Dark Green/Sodium Heparin
Preferred Vol: 2 mL
Minimum Vol: 1 mL
Note: Microtainers are acceptable if a minimum of 0.6mL of serum/plasma is available for testing.
Processing Instructions
Reject due to: Microtainer
Spin: Y
Aliquot: Y
Temp: - 20 C
Storage location: CPA Freezer, Fz3 rack. Store the label with the specimen.
Off-site collection: Spin blood,send serum/plasma frozen.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| serum/plasma | Room temp | 7 d |
| Refrigerated | 1 m | |
| Frozen | 1 y |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | T | 3 - 10 d |
Samples received in lab by 10:00 am on Tuesday will be set up and reported by Wednesday.
Contact Chemistry Lab for request outside of stated availability. (206) 987-2565
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem West
Phone Number: (206) 987-2617
CPT Codes
84585
Methodology
Method: LC/MS/MS
Analytical Volume: 0.4 mL serum/plasma
Limitations:
The level of VMA is analyzed by LC/MS/MS. Results obtained from different labs or different sample types cannot be used interchangeably.
Reference Range
| VMA | </= 20 ng/mL |
Description
This test is used to screen children for catecholamine-secreting tumors and to support a diagnosis of neuroblastoma.