Health The Ministry of Health expert estimated the frequency of...

The Ministry of Health expert estimated the frequency of false negative tests for SARS-CoV-2 at 20-30%


The accuracy of existing PCR tests to detect new coronavirus infection SARS-CoV-2 is not more than 70–80%. Such data was presented by the director of the clinic of pulmonology and respiratory medicine of the First MGMU. THEM. Sechenova, Head of the Clinical Department of the Research Institute of Pulmonology of the FMBA of Russia, Chief Freelance Pulmonologist of the Ministry of Health Sergey Avdeev at the Congress “Man and Medicine” on April 7.

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“The sensitivity of the PCR method is 70–80%. We have patients with negative test results, but they have COVID-19 disease, ”the specialist said, making a report on the main mistakes in routing patients with community-acquired pneumonia.

He referred to the results of a study involving 1.4 thousand patients. 300 of them had a negative laboratory test for SARS-CoV-2, but the results of computed tomography of the lungs showed changes characteristic of a new coronavirus infection.

“Thus, the most sensitive test for the diagnosis of patients with COVID-19 is computed tomography of the lungs. The sensitivity of CT methods is higher than the PCR diagnostic methods, ”the expert emphasized.

Earlier, the Ministry of Health said that all hospitalized patients with pneumonia are required to be examined for coronavirus infection, including laboratory tests using test systems. Data is entered by medical organizations into the information system integrated into the EHISP.


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