An electrocardiogram (ECG or EKG) is a graphic produced by an electrocardiograph that records the electrical activity of the heart over time, allowing health care providers to diagnose a wide range of heart conditions.

A ventilator (also known as a respirator) is a machine designed to mechanically move air in and out of the lungs to intermittently or continuously assist, or control, pulmonary ventilation.

An automated external defibrillator (AED) is a portable device used to restore normal heart rhythm to patients in cardiac arrest by delivering an electrical shock to a patient through the chest wall.

A vital signs monitor is a multi-parameter supplier that measures blood pressure, oxygen saturation, temperature and heart electrical activity designed to give a clear view of patient information.

An anesthesia machine administers anesthesia to patients by one of two ways, intravenous or inhalational gas anesthesia.