Unit Code 80421:
Parainfluenza Antibody, CF (Serum)
Reference Values
Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
REFERENCE RANGE: < 1:8
INTERPRETIVE CRITERIA:
< 1:8 Antibody Not Detected
> or = 1:8 Antibody Detected
Single titers > or = 1:64 are indicative of 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).
This test was developed and its performance characteristics
have been determined by Focus Diagnostics. Performance
characteristics refer to the analytical performance of the test.
Test Performed by
Focus Diagnostics, Inc.
5785 Corporate Avenue
Cypress, CA 90630-4750


