Test Overview
Test Methodology
Spectrophotometry
Test Usage
Diagnose dihydropteridine reductase deficiency
Reference Range *
3.0 - 8.6 nmol/min/disc
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Monday - Friday
Analytic Time
7 days
Soft Order Code
LADHR
Laboratory
Sendout
Reference Laboratory
Children's Hospital Los Angeles
Section
Special Testing
Specimen Requirements
Collection Instructions
Blood spot card, provided by clinic to patient family for draw; alternatively, a green top (sodium heparin) tube may be used. Send to Specimen Processing room temp
Normal Volume
5 spots on card or 2 mL whole blood
Minimum Volume
3 spots on card or 1 mL whole blood
Storage Temperature
Ambient or refrigerated
Additional Information
Test performed by Children's Hospital Los Angeles, Biochemical Genetics/Special Chemistry Lab
Billing
CPT Code
82657