Test Overview
Test Methodology

Electrophoresis with Densitometry

Test Usage

Evaluation of myocardial infarction and/or skeletal muscle damage.

Reference Range *

TOTAL: Reference values have not been established for patients that are less than 6 years of age. Males: 6-11 years: 150-499 U/L; 12-17 years: 94-499 U/L; >or= 18 years: 52-336 U/L. Females: 6-7 years: 134-391 U/L; 8-14 years: 91-391 U/L; 15-17 years: 53-269 U/L; >or= 18 years: 38-176 U/L. ISOENZYMES: MM: 100%; MB: 0%; BB: 0%.

Test Details
Days Set Up
Monday - Saturday
Analytic Time

2 - 5 days

Soft Order Code
CKELR
MiChart Code
CK Isoenzyme with Reflexive Electrophoresis (Sendout)
Synonyms
  • CK Isoenzymes
  • CKELR
Laboratory
Sendout
Reference Laboratory
Mayo CKELR (35063)
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in a red top tube or SST tube. Centrifuge, aliquot serum into two plastic vials and refrigerate up to 72 hours or freeze for longer storage. Specimen must be aliquoted within 2 hours of collection

Yellow Top Tube
Normal Volume
2 mL serum
Minimum Volume
0.8 mL serum
Additional Information

Testing begins with total creatine kinase analysis (CK). If the total CK activity is <100 U/L testing is complete. CK isoenzyme electrophoresis testing will not be performed. If the total CK activity is > or =100 U/L, CK isoenzyme electrophoresis (CKEL) will be performed at an additional charge.. Test sent to Mayo Medical Laboratories.

Billing
CPT Code
82550
Fee Code
AA159
Reflex CPT
82552
Reflex Fee Code
22253
NY State Approved
No