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Lab Manual for Moffitt-Long and Mount Zion

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Parainfluenza Antibodies

Item Value
Approval req'd? No
Available Stat? No
Test code PFL1
Performed by Quest
Sendout? yes
Method Complement fixation
Container type Red top or Gold top
Amount to Collect 2 mL blood
Sample type Serum
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
Units Titer
Normal range
Negative < 1:8 titer
Synonyms Paraflu
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).
LOINC code 49713-1
Last Updated 9/8/2012 2:17:34 PM
Entry Number 1197

If you have additional questions regarding this test, please call: 415-353-1667

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