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Test Code Crt Guan Creatine, Guanidinoacetate, Plasma

Clinical System Name

Creatine, Creatinine, Guanidinoacetate, Plasma

Synonyms

AGAT (Arginine glycine amidinotransferase)
CRT GUAN
CRTR (Creatine transporter)
GAMT (Guanidinoacetate methyltransferase)
Guanidinoacetate

Sample Requirements

Specimen: Whole Blood

Container(s): Dark Green/Sodium Heparin

Preferred Vol: 4.0 mL

Minimum Vol: 2.0 mL

 

Note: 

Processing Instructions

Reject due to:

Spin: Y

Aliquot:Y

Temp: -20 C

Storage location: Separate plasma as soon as possible. Aliquot 1.0 mL plasma in the CPA freezer, sendouts rack. Serum is acceptable, not preferred.

 

Off-site collection: Separate plasma as soon as possible. Serum is acceptable, not preferred.

Stability

Specimen Type Temperature Time
Plasma Room temp

N

  Refrigerated N
  Frozen

7 d

 

Availability

STAT Performed TAT
N Drawn daily 10- 14 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

 

  Creatine(umoles/L)

Guanidinoacetate(umoles/L)

0 - 2 year 28 - 102 0.3 - 1.6
3 - Adult 20 - 110 0.3 - 2.1

 

 

Methodology

Method: MS/MS

Analytical Volume: 1.0 mL plasma

Limitations:

Send Out Instructions

 

Reference Test Name: Creatine and Guanidinoacetate Determination - Plasma
Reference Test Number:

4130

Instructions:

Ship frozen samples overnight via Fed Ex. Baylor does not accept Saturday delivery for Biochemical specimens