Question: Where should COVID 19 swab testing be performed on a patient with known or suspected COVID19?

Answer passage (source: CDC):
page_title: Frequently Asked Questions
section_headers: Symptoms & Testing
What is antibody testing? And can I be tested using this method?
section_content: Antibody testing checks a sample of a person’s blood to look for antibodies to
SARS-CoV-2, the virus that causes COVID-19. These antibodies are produced when
someone has been infected, so a positive result from this test indicates that
person was previously infected with the virus.
CDC is working with other federal agencies to evaluate the performance of
commercially manufactured antibody tests that are becoming increasingly
available from healthcare providers. This evaluation is expected to be
completed in early May.
We do not know yet if the antibodies that result from infection with SARS-
CoV-2 can protect someone from reinfection with this virus (immunity) or how
long antibodies to the virus will protect someone. Scientists are conducting
research to answer those questions.
Antibody tests may not be able to tell you if you are currently infected
because it typically takes 1 to 3 weeks to develop antibodies to SARS-CoV-2.
To tell if you are currently infected, you would need a test that identifies
the virus in samples from your upper respiratory system, such as a
nasopharyngeal swab.

Reviewer feedback on this answer:
Specifies that coronavirus testing requires a nasopharyngeal swab.
The question is asking about the viral test, to look for an active COVID infection. The answer refers to the antibody test, which looks for a past, or previous infection.

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Answer passage (source: CDC):
page_title: Frequently Asked Questions about Biosafety and COVID-19
section_headers: Specimen Handling
If laboratory personnel collect blood or respiratory specimens directly from suspected or confirmed COVID-19 patients, what PPE should they wear?
section_content: If laboratory personnel have direct contact with suspected or confirmed
COVID-19 patients, they should follow recommended PPE for health care
providers while in the presence of these patients.
For additional information, refer to:

Interim Infection Prevention and Control Recommendations for Patients with Suspected or Confirmed Coronavirus Disease 2019 (COVID-19) in Healthcare Settings
OSHA 29 CFR 1910.1030 Bloodborne Pathogens Standardexternal icoexternal icon


Reviewer feedback on this answer:
Doesn't mention swabs at all, much less where they should be used.
The question is looking to find out where COVID testing can take place, but the answer is discussing PPE for healthcare workers when they are in contact with COVID patients. It doesn't address the question.

Reviewer ratings:
Bad
Bad

Answer passage (source: CDC):
page_title: Healthcare Infection Prevention and Control FAQs for COVID-19
section_headers: Where should nasopharyngeal swabs be performed on a known or suspected COVID-19 patient, and with what PPE?
section_content: The collection of nasopharyngeal (NP) swabs from patients with known or
suspected COVID-19 can be performed in a regular examination room with the
door closed. Use of an airborne infection isolation room for nasopharyngeal
specimen collection is not required. HCP in the room should wear an N95 or
higher-level respirator (or facemask if a respirator is not available), eye
protection, gloves, and a gown. If respirators are not readily available, they
should be prioritized for other procedures at higher risk for producing
infectious aerosols (e.g., intubation), instead of for collecting NP swabs.

Reviewer feedback on this answer:
Specifies that nasopharyngeal swabs are used to test for COVID-19.
The question goes into great detail concerning where the COVID swab testing should take place. It includes specifics about the type of room that should be used. This is a direct answer to the question.

Reviewer ratings:
Excellent
Excellent