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Submit one specimen per test requested. Specify the exact specimen source/origin (eg, nasopharyngeal aspirate). Indicate a specific test number on the test request form.
1 - 3 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Nasopharyngeal (NP) washes or aspirates (preferred), NP swabs; refrigerated or frozen
2 to 3 mL washes or 0.5 to 1 mL aspirates
Viral, Chlamydia, or Mycoplasma culture transport provided by LabCorp, or other appropriate transport medium; sterile leakproof container for washes or aspirates
Nasopharyngeal wash or aspirate using routine collection and transport procedure. Nasal swabs are not considered as sensitive for RSV detection. Avoid using collection containers with preservatives or transport that may contain interfering substances. Do not use calcium alginate swabs. Obtain sample during acute phase of illness when greatest amount of viral shedding occurs. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Refrigerate for 72 hours or freeze if held longer.
Bacterial swab specimen; specimen received in grossly leaking transport container; dry specimen; specimen submitted in fixative or additives; specimen excessively bloody; specimen received in expired transport media or incorrect transport device; inappropriate specimen transport conditions; specimen received after prolonged delay in transport (usually more than 72 hours); wooden shaft swab or calcium alginate swab in transport device; unlabeled specimen or name discrepancy between specimen and request label
Evaluate lower respiratory tract infections in young children. Severe life-threatening infections due to respiratory syncytial virus can occur during the first few years. Acquired immunity is incomplete and reinfection can occur later.
A positive result may occur in the absence of viable virus. In the event of a negative result, infection due to RSV cannot be ruled out because the antigen present may be below the detection limit of the test. A negative test is presumptive, and it is recommended by the assay manufacturer that these results be confirmed by another method. Freezing of the sample may also diminish detection of the antigen.
This test allows rapid diagnosis of the presence of respiratory syncytial virus. It avoids the necessity of obtaining acute and convalescent specimens over a two-week period. It may be particularly useful in children younger than six months old, whose antibody response to infection may not be diagnostic.
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|014548||RSV Ag, EIA||68966-1||014548||RSV Ag, EIA||68966-1|
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