4Kscore Test

Abbrev Code:4KSCOR   
Order Code:LAB6846Order Name:4KSCORE
Synonyms:Prostate-Specific Kallikrein; Kallikrein Score
Methodology:Electrochemiluminescent immunoassay
CPT Codes: 81539 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 3-6 days.
Special Instructions:A completed OPKO Laboratory Information Test Sheet or GenPath test requisition must be sent with each sample. Patient's biopsy history is required for this testing.
Associated Links:

OPKO Laboratory Information Test Sheet

Collection Instructions

Optimal Volume:8 mL
Minimum\Peds Volume:6.2 mL
Container:Red or gold (gel)
Causes for Rejection:Samples other than serum.

Processing and Shipping

Specimen Processing:Let stand in upright position for 30 minutes or until clot has formed. Centrifuge and aliquot 4 mL; 3 mL minimum. Freeze immediately. Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.
Shipping Instructions:Ship frozen. Include a completed Laboratory Information test sheet, the patient's insurance information card and the patient's biopsy history with each sample.
Stability:72 hours at refrigerated temperature; 1 month frozen.
Test Performed at or Referral Lab Lab Sendouts  (BioReference Laboratories via ARUP)
Referral Lab number:2014059


Reference Range:By report.
Use:Test is intended for patients 40-80 years of age. Stratifies risk of aggressive prostate cancer in patients with elevated PSA where biopsy is being considered. Test should not be ordered if digital rectal exam has been performed within the last 4 days or if biopsy history is positive.

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