Breathing is a fundamental part of life without which the sustainability of all bodily functions would be rendered obsolete. Therefore, in patient care, one of the most important assessments that all healthcare providers must prioritize is the assessment of the patient's airway patency and respiratory function and in doing so , identify and rectify any potentially fatal anomaly. Maintaining respiratory mechanics allows respiratory functions, vital to homeostatic balance, to remain thriving and improve the prognosis of the recovering patient. During this trial, the use of respiratory support techniques will be critically examined in terms of issues related to the administration of invasive and non-invasive respiratory support techniques, legal and ethical implications of mechanical ventilation of patients and political influences on withdrawal. medical treatment in the case of the mechanically ventilated patient. Respiratory failure in patients can be the result of many different factors such as diseases or conditions that cause dysfunction of respiratory mechanics and is defined by Hurst (2009) "as impaired pulmonary gas exchange leading to hypoxemia with or without hypercapnia. Clinical management of respiratory failure can be achieved using non-invasive techniques such as oxygen therapy; continuous positive airway pressure (CPAP) and non-invasive ventilation. Invasive techniques for managing respiratory failure involve endotracheal intubation and ventilation of the patient. The patient's presentation will determine the level of respiratory intervention necessary to maintain the patient's vital signs. The use of oxygen therapy is widely recognized as a...... middle of paper ...... Ms. B, a situation in which a patient decides to refuse life-sustaining treatment must be determined on a case-by-case basis. per case. Until government and society decide to openly debate the withdrawal or withholding of life-sustaining treatments, there will be uncomfortable battles in the courts over the right to end life. As Lord Bingham (2001) said when commenting on the case of Miss Pretty VS Director of Public Prosecutions (2001): "The wider issues raised by this appeal are the subject of deep and fully justified concern among many people . The question of whether the terminally ill, or others, should be free to seek help to commit suicide, and if so, under what circumstances and subject to what safeguards, is of great social importance , ethical and religious and are questions on which very divergent opinions are expressed. beliefs and opinions are defended, often strongly”