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Lab Test Dictionary

Hypoxanthine-Guanine Phosphoribosyl Transferase (HGPRT)


Synonyms

HPRT, HPGRT, APRT

Specimen Type

Blood Spots

Performing Lab

UCSD Biochemical Genetics


Epic ID

LAB0430

Lab Test Days

Monday-Friday

Standard TAT

12-16 Days


Collection Information

Specimen Required

3-5 Blood Spots

Container Type

Blood Spot Card

Collection Instructions

Fill 3-5 spots, allow to air dry for 4 hours after collection.


Processing Information - Lab Use Only

Transport Temperature

Ambient-Only

Test Volume Required

5 Blood Spots

Minimum Test Volume

3 Blood Spots

Processing Instructions

Complete UCSD Biochemical Genetics requistion and submit with specimen room temp.


Comments

The diagnosis of Lesch-Nyhan syndrom and variant forms depends on the assay of HPRT. The assay is radiochemical, and also measure Adenine Phosphoribosyl Transferase as an internal control. It is helpful to have a clinical history of the patient provided.


CPT Codes

82658


Revised

07-14-17

Initials

SL