Sign in →

Test Code CRT GUAN U Creatine, Guanidinoacetate, Urine

Clinical System Name

Creatine, Creatinine, Guanidinoacetate, Urine

Synonyms

AGAT Urine - Arginine:glycine amidinotransferase
Arginine glycine amidinotransferase
CRTR Urine - Creatine transporter
GAMT Urine - Guanidinoacetate methyltrasferase
Guanidinoacetate Urine
SLC6A8
U GuanCrt

Sample Requirements

Specimen: Urine

Container(s): Sterile Screw-Capped Container

Preferred Vol: 4.0 mL

Minimum Vol: 2.0 mL

 

Note: 

Processing Instructions

Reject due to:

Spin: N

Aliquot: Y

Temp: -20 C

Storage location: Transfer a maximum of 10 mL random urine in plastic screw top container. Place the aliquot in the send outs rack in CPA freezer.

 

Off-site collection: Send frozen.

Stability

Specimen Type Temperature Time
  Room temp

 

  Refrigerated 2 h
  Frozen

 

 

Availability

STAT Performed TAT
N Collected daily 10 d

 

Performing Laboratory

Baylor Miraca Genetics Laboratories

Department

Department:  

Baylor Miraca Genetics Laboratories
2450 Holcombe
Grand Blvd Receiving Dock
Houston, TX 77021-2024
 

Phone Number

(800) 411-GENE (4363)

Reference Range

 

  Guanidinoacetate (Gaa) umole/L Gaa/Crn Creatine umole/L Creatine/Creatinine
1 - 31 days 9 - 210 0.02 - 3.62 12 - 2930 0.02 - 0.93
1 - 23 Months 16 - 860 0.03 - 2.56 18 - 10490 0.02 - 2.49
2 - 4 Years 90 - 1260 0.04 - 1.1 200 - 9210 0.04 - 1.75
5 - 18 Years 40 - 1190 0.05 - 2.21 60 - 9530 0.01 - 0.96
> 18 Yrs Females 30 - 760 0.08 - 9.69 5 - 2810 0 - 0.46
> 18 Yrs Males 30 - 710 0.94 - 8.78 7 - 470 0 - 0.04

 

 

Methodology

Method: LC/MS/MS

Analytical Volume: None specified

Limitations:

CPT Codes

82540

82570

Send Out Instructions

 

Reference Test Name: Creatine/Guanidinoacetate Analysis
Reference Test Number:

4260

Instructions:

Ship frozen via Priority Overnight with FedEx.