Isomer Reflex

Test Code: TD_IsomerReflex

CPT Code(s):
1-7 Confirmations: G0480;
8-14 Confirmations: G0481;
15-21 Confirmations: G0482;
22+ Confirmations: G0483

Test Details

Alternative Name(s)

Methamphetamine Isomer
Methamphetamine Enantiomer
D/L Methamphetamine
Dextromethamphetamine
Levomethamphetamine

Test Includes

D- Methamphetamine
L-Methamphetamine

Methodology

Urine

Rejection Criteria

Specimens with any preservatives

Reference Range(s)

Negative
When methamphetamine confirmation testing is positive, a methamphetamine enantiomer test will be reflexed

Specimen Requirements

Preferred Specimen

Urine transport tube or cup

Minimum Volume

1 mL urine

Sample Stability

2 weeks refrigerated

Transport Temperature

Refrigerated

Collection Instructions

After obtaining a urine sample from patient, unscrew the cap of the sample cup and submerge the tip of transfer straw into the specimen. Insert a 6mL additive-free tube, allowing the urine to fill the tube until the flow ceases.

Alternative Specimen

N/A