Note: To learn to perform a procedure, both cognitive and procedural steps should be followed. These steps are explained and demonstrated in this month’s Video Corner and are summarized for quick reference in the list below.

Ideally, ultrasonography or echocardiography can be performed before and during this procedure to minimize complications. However, in an emergent setting, when ultrasonography or echocardiography cannot be performed in a timely manner, it is important for the practitioner to know how to perform the steps of this lifesaving procedure.

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