Your COVID-19 Questions & Answers
Response from Tom Belhorn
Q:
I just read a policy that said we do not need an N95 mask when obtaining a specimen for COVID-19 in an asymptomatic patient. I thought we always had to use an N95 mask for getting COVID specimens. Which is correct?
A:
We are now entering a “new era” at UNC where we have additional testing supplies and can expand testing to select asymptomatic individuals. Up until now we have been testing patients who have symptoms likely to represent COVID-19. For these patients we have used “Special Airborne Precautions” including gown, gloves, eye shield, and N95 mask when we obtained the NP specimen. The CDC originally classified the process of obtaining an NP swab as one of the “aerosol generating procedures” along with intubation, bronchoscopy, et al., but later changed this classification for an NP swab. As we are now able to test select asymptomatic patients (i.e. those thought to not have COVID-19 but needing that confirmation), the CDC guidance is that “Special Droplet / Contact Precautions” [the same as Special Airborne Precautions but with a surgical mask instead of N95] provides excellent protection in this circumstance and should be used by the provider obtaining the test. [Just of note, many institutions are using Special Droplet / Contact Precautions for all COVID care except aerosol-generating procedures and this is considered safe and protective for healthcare providers].