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Test Code LAB90433 Creatine Kinase (CK), Total, Plasma or Serum

Reporting Title

CPK

Methodology

Roche Diagnostics: RMH, BH, DH, DHC, DMH, GCMH, GMC, GMH, MGH, MH, OBH, PMH, WECC, HMH, SH

 

VWH Lab: 

CK reagent, when used in conjunction with SYNCHRON LX® System(s), UniCel® DxC 860i System(s), is intended for the quantitative determination of Creatine Kinase activity in human serum or plasma.

 

Performing Laboratory

OhioHealth Laboratory Services - RMH, BH, DH, DMH, GCMH, GMC, GMH, HMH, MGH, MH, OBH, PMC, SH, WECC and VWH Core Laboratories

Specimen Requirements

Collection Instructions:

1. Serum and Plasma gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.

 

Submit only 1 of the following specimens:

 

Preferred:

Serum

Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated.  Avoid hemolysis. 

Note:

1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.

2. Indicate serum on request form.

3. Label specimen appropriately (serum).

 

Alternate (Preferred for VWH Lab): 

Plasma

Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 1 mL of heparinized plasma refrigerated. Avoid hemolysis. 

Note:

1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

VWH Lab:

3. Tubes of blood are to be kept closed at all times and in a vertical position. It is recommended that the serum or plasma be physically separated from contact with cells within two hours from the time of collection.

4. Stability of CK activity in sera is not well defined, but is generally poor. Specimens should be assayed as soon after collection as possible since activity loss may occur after specimens have been stored for 4 hours at room temperature, 8 to 12 hours refrigerated. Refrigerated specimens are stable for 48 hrs. 

 

Roche Specimen Stability Information

Specimen Type Temperature Time
Serum or plasma Refrigerated 7 days
  Ambient  2 days
  Frozen  4 weeks

 

Specimen Transport Temperature

Refrigerate: OK

Ambient: OK

Frozen: OK

Reference Values

0-7 weeks: 120-675 U/L

Males:  60-225 U/L

Females:  40-170 U/L

 

VWH Lab:

Serum or Plasma (Male): 38 – 174 IU/L

Serum or Plasma (Female): 26 – 140 IU/L

 

Day(s) Test Set Up

Monday through Sunday; Continuously

Test Classification and CPT Coding

82550