Apr 2, 2015




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Chemistry


Procalcitonin (HCPRCTON) Chemistry Lab Test

Name: Procalcitonin

Test Name: Procalcitonin

Health Link Test Code: HCPRCTON


CPT Code(s): 84145

Methodology: Indirect Immunofluorescent Assay

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Collection Container: Green cap with yellow ring (PST)

Also Acceptable: Green top, Red cap with yellow ring (SST), Red top

Collection Volume: 1.5 mL

Pediatric Collection Volume: 1 mL

Stability Refridgerated:

48 hours separated off cells

Stability Frozen:

6 months separated off cells

Sample Analyzed: Plasma or serum

Testing Volume: 0.5 mL

Pediatric Testing Volume: 0.25 mL

Specimen Processing:

Centrifuge. If a complete barrier has not been formed, transfer cell-free plasma or serum to plastic vial. Refrigerate.

Specimen Transport:

Transport entire specimen to UWHC Hospital Laboratory. Transport with coolant pack if coming from clinic location.. If time from collection to receipt in the UWHC Hospital Laboratory will exceed 48 hours, freeze sample and ship frozen.

Unacceptable Criteria:

Grossly hemolyzed samples are unacceptable.


Age 0-2 days:

Age (hours): ng/mL
0-6 hours <2.00
6-12 hours <8.00
12-18 hours <15.00
18-30 hours <21.00
30-36 hours <15.00
36-42 hours <8.00
42-48 hours <2.00


Age 3 days and older:

ng/mL Interpretive Guidelines:
≤0.25 Bacterial infection unlikely

Supportive of bacterial pneumonia or other localized infection.


Supportive of a significant systemic bacterial infection.


Significant bacterial infection likely; patient is at increased risk for bacterial sepsis and/or septic shock.


Interpretation Type: Reference Interval

Additional Information:

Repeat testing should only be performed >48 hours from first test.