Synonyms

HMMA, Vanillylmandelic acid

Clinical Indications

Screening of suspected neuroblastoma. 

Test Includes

Vanillylmandelic acid (VMA) and Homovanillic acid (HVA)

Request Form 

Combined Pathology Blood form (Yellow/Black)

Availability

Analysed by referral laboratory if specific criteria met.

Specific Criteria

Screening of suspected neuroblastoma.

Turnaround Time

2 weeks

Specimen

Random Urine

Volume

2 ml

Container

White Capped Universal

Collection

Samples should be transported to laboratory immediately.

Lab. Handling

Aliquot and store at minus 20’C. Send by transport (Thursday)

Causes for Rejection

Unlabelled sample. Not meeting specific criteria for analysis. Delay in sample reaching laboratory

Reference Range

Results are expressed as a ratio to creatinine