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RESPIRATORY VIRUS ANTIBODY

Synonym(s):

​RSV Total Ab, RSV CF Ab, Adenovirus Total Ab, Adenovirus CF Ab, Parainfluenza virus Total Ab, Parainfluenza virus CF Ab, Influenza virus Total Ab, Influenza virus CF Ab

Lab Section Category

Description

​Adenovirus CF Antibody 

Influenza Virus CF Antibody

Parainfluenza Virus CF Antibody

Respiratory Syncytial Virus CF Antibody

Indications

Specimen Required

​3 mL plain blood for a single test. 6 – 8 mL for all tests indicated above.

To diagnose acute infection, send paired sera taken two weeks apart.

Send paired sera also for varicella-zoster virus (VZV) CF antibody and cytomegalovirus (CMV) CF antibody if pneumonia is suspected to be due to these viruses.

Storage and Transport

​Refrigerate samples if delay in transporting to laboratory is anticipated. Do not freeze.

Method

​Complement Fixation Test

Test Results

Acute infection: Paired sera showing ≥ 4 fold rise in antibody titre. A single sample having a titre of ≥ 128 to any of the viruses tested is suggestive of a recent acute infection.

Reference Interval / Value

Turnaround Time

​Single sample : 1 – 8 days

Paired sample : 1 – 8 days after receipt of second sample

Day(s) Test Set up

​Thursday

Remarks

​VZV and CMV CF antibody tests are available at additional charges.

Change History Notes

Others

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