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|Container type||Red top or Gold top|
|Amount to Collect||2 mL blood|
|Preferred volume||1 mL serum|
|Min. Volume||0.5 mL serum|
|UCSF Rejection Criteria||Hemolysis|
|Processing notes||Refrigerate serum at 4C. Order Quest test #5157N|
|Ref Lab Rejection Criteria||Hemolysis|
|Stability||Room temperature 7 days, refrigerated 17 days, frozen at -20C 1 month|
|Turn around times||Set up 5 days a week. Turnaround time 4-7 days.|
|Additional information||Includes testing for Parainfluenza types 1, 2 and 3
Single antibody titers of ≥ 1:64 are indicative or recent infection. Titers of 1:8 to 1:32 may be
indicative of either past or recent infection,
since CF antibody levels persist for only a few months.
A four-fold or greater increase in titer between
acute and convalescent specimens confirms the diagnosis.
After initial infection, antibody responses at a later date are often heterotypic and exhibit crossreactivity with other paramyxoviruses (e.g., mumps).
|CPT coding||86790-90 x 3
|Last Updated||6/21/2016 12:26:17|