Ultrasonography is now considered the stethoscope of the intensivist and has become an essential component in evaluating and clinically managing patients admitted to the intensive care unit. Routinely using ultrasound in the ICU can rule out various disorders of the lungs, heart, abdomen, and vasculature and help manage fluid balance, which is an integral component of the ICU. Repeatability, reproducibility, portability, good-quality imaging, and the lack of hazards from radiation make ultrasound a handy tool to dynamically evaluate the various pathological conditions in real time.