Mechanical ventilation can be invasive and non-invasive. Its purpose is to enhance gas exchange and it helps de-stress respiratory muscles. (1, 2) Non-invasive mechanical ventilation is a form of mechanical ventilation in which the respiratory support spans throughout the upper airway without invasive procedures such as intubation or tracheotomy. NIMV can be used in different ways, but CCU establish using full face mask or the oronasal mask. NIMV pros: active participation of the patient in the breathing process without the need for sedation, decreased choices of infection and the development of avoiding trauma, easier implementation of health care and easier communication. (1, 2) There are also contraindications for NIMV use such as: cardiorespiratory arrest, hemodynamic instability, disturbance of consciousness and patient noncompliance, increased secretion of the respiratory system, face traumas, pneumothorax, fresh upper gastrointestinal tract operation. Nurse role is continuous surveillance of the vital functions, respiratory status as well as the general condition of the patient. It`s also important to monitor the lab results and reacting on the time if they change.

In this research we will present the complexity of the taking care of a patient on NIMV on an example of a 37-year-old female patient diagnosed with pulmonary edema.