Browsing Tag

Flu

Main lab, Microbiology, Test Utilization

Influenza Testing Reminder

The mitigation strategies enacted during the COVID-19 pandemic to reduce the spread of this virus have also impacted the transmission of other respiratory viruses. Influenza is typically prevalent during the winter months (December through March), however, influenza cases were essentially non-existent during the 2020-2021 season and influenza is not currently circulating in our community.

In the absence of circulating influenza activity, it is recommended to use the most sensitive diagnostic test in order to obtain accurate and actionable results. Influenza antigen testing (e.g. Sofia instrument) is not appropriate at this time. More detailed information can be found as published by the CDC: Algorithm to assist in the interpretation of influenza testing results and clinical decision-making during periods when influenza viruses are NOT circulating in the community

Low Influenza
prevalence
High influenza
prevalence
Recommended order Influenza PCR (LAB3255) Influenza Rapid Antigen (LAB2111530)
or
Influenza PCR (LAB3255)

TEST INFORMATION

Test name Epic code Interface EMR Code CPT Code
 Influenza PCR  LAB3255 11594 87502
 Influenza Rapid Antigen  LAB2111530 11208 87804 x4
General Information, Microbiology, Referral/Sendouts, Test Utilization

Obsoletion of Mayo Send-Out Test Influenza Virus A/B Antibodies, IgG and IgM

As of October 29, 2020, the following send-out tests will be will become obsoleted due to lack of clinical utility:

SFLA Influenza Virus A Antibodies, IgG and IgM (Separate Determinations), Serum [LAB802]

SFLB Influenza Virus B Antibodies, IgG and IgM (Separate Determinations), Serum [LAB803]

For diagnosis of acute Influenza infection the following molecular tests are recommended:

Influenza A/B PCR [LAB3255]

Influenza A/B Rapid [LAB9240]**

Influenza A/B Rapid, Influenza A/B PCR if Negative [LAB2111530]**

**Available only at regionals and during times of high flu incidence Continue Reading

Microbiology, Test Utilization

Influenza Epidemic Testing Recommendations 2018

Influenza is currently widespread throughout the nation at epidemic proportions. During influenza epidemics, clinical assessment predicts the presence of influenza infection virtually as well as laboratory testing. Therefore, it is no longer necessary to perform viral testing on ambulatory patients who present with illness consistent with influenza before beginning antiviral treatment. Antiviral treatment for Influenza should be started as soon as possible to have a beneficial effect.

Shortages of supplies and medications frequently occur during Influenza epidemics. However, diagnosis of specific viral respiratory infection remains important for hospitalized patients.

Please follow the current recommendations:

  • Limit availability of viral transport media at ambulatory sites.
  • Emergency departments are to limit viral respiratory testing to patients expected to be admitted.
  • Do not perform testing for test of cure.

Thank you for your support during this time. Please direct any questions to Laboratory Services via the “contact us” link above.