Plasma

Plasma Separator Tube 4.5 mL

Call laboratory for additional acceptable specimen collection containers.

3 mL whole blood in light green top tube or TWO Microtainer^® devices for pediatric patients.

24 hrs/day, 7 days a week, including holidays.

1 hour (upon receipt in laboratory)

                             All units in ng/mL
Age                     Male                   Female
------                  -------------          ------------
0-13 days               5,000 - 105,000        5,000 - 105,000
14-30 days              300 - 60,000           300 - 60,000
1 month                 100 - 10,000           100 - 10,000
2 months                40 - 1,000             40 - 1,000
3 months                11 - 300               11 - 300
4 months                5 - 200                5 - 200
5 months                0 - 90                 0 - 90
6-11 months             0 - 60                 0 - 97
1 year                  0 - 17                 0 - 41
2 years                 0 - 12                 0 - 12
3+ years                0 - 9                  0 - 9

Reference ranges updated 6/30/2011 by addition of pediatric reference 
ranges below 3 years old.

This result was obtained using the Roche Diagnostics electrochemiluminescence immunoassay on a Roche Cobas analyzer. Patient results determined by different assay manufacturers or methods are not interchangeable.

Assay updated with increased tolerance to biotin on March 5, 2024.

Please print, complete and submit the Advance Beneficiary Notice (ABN) along with the Laboratory Requisition before shipping the specimen.

Assay is unaffected by icterus (<65 mg/dL), hemolysis (Hb <2200 mg/dL), lipemia (triglycerides <1500 mg/dL), and biotin (<1200 ng/mL).

Electrochemiluminescence Immunoassay

Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells within 1 hour of collection. Send specimen in original tube. Do Not transfer to another tube.
Each sample must be labeled with at least TWO full patient identifiers (First/Last Name & DOB are sufficient for non-UIHC affiliated clients) to avoid sample rejection/delays.

Refrigerate.
All sample storage requirements are intended for delivery to UIHC within 24 hours of collection for testing. If samples won't arrive in this time period, please call the UIHC Core Lab for alternative storage/shipping instructions (319-356-3527).

Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.