![]() ![]() ![]() LUS shows good agreement with CT in recognizing lung pathology and its severity thus, identifying patients at higher risk of clinical deterioration, ICU admission, mechanical ventilation and mortality. Lung involvement may be limited to dorsal/basal areas in milder COVID-19 pneumonia. At presentation, the distribution, although bilateral, is usually asymmetrical and patchy. Large consolidations with air bronchograms may be present, more commonly in patients requiring mechanical ventilation, possibly representing progression to ARDS or superimposed bacterial infection. Frequently observed are : heterogeneous B-lines clusters, separated or confluent (corresponding to ground glass opacities on CT), large band-like longitudinal artifacts arising from normal pleural line (characterized as “light beam” ), pleural line irregularities, subpleural consolidations and areas with decreased lung sliding due to poor ventilation. LUS findings associated with COVID-19 pneumonia are reported to be similar to previously described viral pneumonias. LUS can diagnose COVID-19 pneumonia in patients with normal vital signs and distinguish viral and bacterial pneumonias. The diagnostic accuracy of addition of LUS outperforms standard emergency department tests for dyspnea. LUS is more accurate than CXR for diagnosing respiratory conditions, including interstitial diseases, pneumonia and COVID-19 pneumonia. ![]() Several algorithms/approaches developed for triage are perceived as helpful, but remain unvalidated. ![]() Instability may preclude intra-hospital transportation.ĭelays or unreliability of reverse-transcriptase polymerase-chain-reaction (RT-PCR) results complicate infection control. Pre-existing conditions, and acute exacerbations of these diseases are common. The diagnosis of COVID-19 pneumonia is challenging:Īlthough CT has the best diagnostic yield, access is limited by patient volume, resources and risk of environmental contamination. Approximately 5% of patients require critical care and mechanical ventilation, usually due to viral pneumonia and/or ARDS.
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