Table 1.

Summarizing the different uses of the different POCUS modalities in COVID-19 related ARDS

POCUS modalities	The different uses of the different POCUS modalities
Lung ultrasound	1. Allowing to rule in or rule out COVID‑19 pneumonia combined with a medical history during the pandemic [17]
	2. Screening the patient and aiding precise triage and treatment allocation in both the emergency and ICU departments
	3. Assessing the lung lesions' progress and evaluating the severity of COVID-19 [10, 12, 18, 19]
	4. Combing with echocardiography, diaphragmatic ultrasound and other aspects to guide the comprehensive treatments for COVID-19 related ARDS and monitor the response to treatments
Echocardiography	1. Identifying serious RV complications such as ACP, pulmonary embolism, pulmonary hypertension, etc. [29–33, 73]
	2. Detecting other complications related to LV dysfunction [30]
	3. Guiding the comprehensive treatments for COVID-19 related ARDS, mainly the management of cardiac complications and hemodynamics
Other aspects	1. IVC ultrasound combined with LUS and echocardiography is used for fluid resuscitation administration [79]
	2. Thoracic and abdominal ultrasounds help detect free fluid, empyema, pneumothorax, or cardiac tamponade
	3. Vascular ultrasound helps identify DVT and guide catheterization
	4. Obstetric ultrasound helps manage pregnant women infected with COVID-19 [39]