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Test ID PCT Procalcitonin, Serum

Useful For

Diagnosis of bacteremia and septicemia in adults and children (including neonates)


Diagnosis of renal involvement in urinary tract infection in children


Diagnosis of bacterial infection in neutropenic patients


Diagnosis, risk stratification, and monitoring of septic shock


Diagnosis of systemic secondary infection post-surgery, and in severe trauma, burns, and multiorgan failure


Differential diagnosis of bacterial versus viral meningitis


Differential diagnosis of community-acquired bacterial versus viral pneumonia


Monitoring of therapeutic response to antibacterial therapy

Method Name

Homogeneous Time-Resolved Fluorescence

Reporting Name

Procalcitonin, S

Specimen Type

Serum Red

Specimen Required

Collection Container/Tube: Red top

Submission Container/Tube: Plastic screw-top vial

Specimen Volume: 0.5 mL

Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 7 days
  Frozen  90 days

Reference Values

Adults and children ≥72 hours: ≤0.15 ng/mL

Children < 72 hours: <2.0 ng/mL at birth, rises to ≤20 ng/mL at 18-30 hours of age, then falls to ≤0.15 ng/mL by 72 hours of age

Day(s) Performed

Monday through Saturday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
PCT Procalcitonin, S 33959-8


Result ID Test Result Name Result LOINC Value
PCT Procalcitonin, S 33959-8

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Report Available

Same day/1 to 3 days

NY State Approved