Point-of-care ultrasound applications such as lung ultrasound are gradually replacing traditional imaging modalities (i.e., chest X-rays), while the use of ultrasound for procedure guidance has been shown to reduce complications and thus to increase patients’ safety. Ultrasound in the CCU has several inherent limitations and is largely operator dependent, but it enables rapid, by-the-bed, and relatively inexpensive diagnostic evaluation of unstable patients. The content will include descriptions of critical care procedures and ho to perform them and how ultrasonography can be used to support the delivery of evaluation and management services to patients with life-threatening illnesses or injuries.It includes sections on the general use of ultrasonography, neurological procedures, airway and respiratory procedures, cardiac procedures, vascular and hematological hematological procedures, GI and abdominal procedures, genitourinary procedures, peripheral procedures, as well as Patient comfort during procedures.