33877-2
LaboratoryTetrahydrobiopterin/Biopterin in Urine
Definition
A low %BH4 is characteristic of dihydropteridine reductase deficiency, which leads to phenylalanine hydroxylase deficiency, which lesds to phenylketonuria
LOINC 6-Axis Classification
Component
Tetrahydrobiopterin/Biopterin
Property
SFr
Time Aspect
Pt
System
Urine
Scale Type
Qn
Method Type
N/A
Details
Class
CHEM
Order/Observation
Observation
Short Name
Biopterin H4/Biopterin SFr Ur
Display Name
Tetrahydrobiopterin/Biopterin (U) [Molar fraction]
Related Names
Frequently Asked Questions
What is LOINC code 33877-2?
LOINC code 33877-2 identifies "Tetrahydrobiopterin/Biopterin in Urine". A low %BH4 is characteristic of dihydropteridine reductase deficiency, which leads to phenylalanine hydroxylase deficiency, which lesds to phenylketonuria
What does 33877-2 measure?
This code measures Tetrahydrobiopterin/Biopterin in Urine. It belongs to the CHEM class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.