Guanidinoacetic Acid Urine

eD-H Order Code

LAB3331

Reference Laboratory Link

Guanidinoacetic Acid Urine

Specimen Collection Information

Specimen	Minimum Test Volume	Container	Special Handling
Urine	2.0 ML

Reference Ranges / Critical Values

Assay	Gender	Age Range	Normal Range	Critical Values	Units
Creatine/Creat	All	0 Minutes – 4 Years	0.01 -1.19		ratio
		4 Years – 13 Years	0.01 -0.70		ratio
		13 Years – 150 Years	0.01 -0.40		ratio
Guanidinoacet	All	0 Minutes – 4 Years	9 -200		mmol/mol C
		4 Years – 13 Years	12 -127		mmol/mol C
		13 Years – 150 Years	8 -68		mmol/mol C

Interpretive Data

Assay Display	Interpretive Data
Creatine/Creat	Affected range: X-Linked Creatine Transporter Deficiency: Typically > 1.5

CPT(s)

82542

Performing Lab Section

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