Vanillylmandelic Acid, 24-hr Urine

Overview

  • EPIC Code:
  • LAB452
  • Soft Test Code:
  • VMA
  • Send Out Test Code:
  • 22326
Alternate Names
  • VMA (Vanillylmandelic Acid), 24-Hour Urine without
  • VMA, 24-hr Urine
  • VMA, 24-hr Urine, without creatinine

Specimen Collection & Preparation

Patient Preparation

It is preferable for the patient to be off medications for 3 days before specimen collection. However, common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference. Patient should avoid alcohol, coffee, tea, tobacco (including use of nicotine patch), bananas, citrus fruits, and strenuous exercise before collection.


Specimen Requirements

10.0 mL aliquot from a well mixed 24 hour Urine Collection in a Plastic Container


Transport And Storage

10 days Ambient
2 weeks Refrigerated
1 year Frozen

Unpreserved Urine
30 days Frozen


Collection Instructions

1. When starting the 24-hour period, urinate and discard (throw-away) this specimen. NOTE THE TIME
2. From that time on, collect all urine by urinating into a clean container and transfer into the provide container. DO NOT URINATE DIRECTLY INTO CONTAINER.
3. Try to pass the last urine just prior to the end of the 24 hour period. Add this urine into the container. 
4. Urine Specimen MUST be kept refrigerated during and after collection.Shipped frozen AND pH must be < or = 6. 

24hr Urine Volume & patients age on the order and the urine container. 

Printable Patient Collection Instructions

English 24 Hour Urine Collection

Spanish 24 Hour Urine Collection 

Burmese 24 Hour Urine Collection

Arabic 24 Hour Urine Collection 


Minimum Volume

5.0 mL Urine


Neonatal Volume

Clinical Interpretation

Methodology:
  • High Performance Liquid Chromatography (HPLC), Electrochemical Detection

Production Schedule

Sites Performed
  • Quest - Chantilly
Days Performed
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Departments
  • Sendouts - Clinical
Turn Around Time

2 to 6 days


Coding & Compliance

CDM

01420221


CPT Coding

84585