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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Parainfluenza Virus Antigen Detection, DFA
Test Code39494
CPT Codes
87279 (x3)
Includes
Parainfluenza 1, Parainfluenza 2, Parainfluenza 3
Preferred Specimen
Nasopharyngeal aspirate/wash, or bronchial lavage/wash submitted in 3 mL VCM medium (green-cap) tube or equivalent
Minimum Volume
1 mL
Other Acceptable Specimens
Nasopharyngeal swab, or throat swab, nasal swab submitted in VCM medium (green-cap) tube or equivalent
Instructions
To maintain optimum viability, place swab or fluid into VCM (equal volumes of fluid and VCM) or equivalent and transport the specimen to the laboratory as soon as possible. Best recovery is obtained when the specimens are refrigerated 2-8°C or kept on wet ice following collection and while in transit. If there will be a long delay before processing, specimens in VCM or equivalent should be frozen -70°C or colder and transported on dry ice. Storage or transport -20°C is not acceptable. Raw (unpreserved) samples should only be refrigerated and not frozen.
Please note: No longer are acceptable: nasopharyngeal lavage/wash or slides; trachael lavage/wash and tracheal aspirates.
Please note: No longer are acceptable: nasopharyngeal lavage/wash or slides; trachael lavage/wash and tracheal aspirates.
Transport Container
VCM medium (green-cap) tube or equivalent
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
VCM medium (green-cap) tube or equivalent
Room temperature: Unacceptable
Refrigerated: 4 days
Frozen -20° C: Unacceptable
Frozen -70° C: 30 days
Unpreserved specimen in sterile container
Room temperature: Unacceptable
Refrigerated: 72 hours
Frozen: Unacceptable
Room temperature: Unacceptable
Refrigerated: 4 days
Frozen -20° C: Unacceptable
Frozen -70° C: 30 days
Unpreserved specimen in sterile container
Room temperature: Unacceptable
Refrigerated: 72 hours
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Throats on <2 year old patients • Specimen in non viral transport medium such as nucleic acid or bacterial transport media • Non-respiratory specimens • Dry swabs • Specimen in formalin or other fixatives • Received room temperature or frozen -20° C • Slides
Methodology
Direct Immunofluorescence Assay
Setup Schedule
Set up: Mon-Sat; Report available: 2-3 days
Reference Range
Parainfluenza 1 | Not detected |
Parainfluenza 2 | Not detected |
Parainfluenza 3 | Not detected |
Clinical Significance
Parainfluenza virus is the second most common cause of lower respiratory disease in young children. Parainfluenza virus can cause respiratory tract illness in patients of any age.