…disease or hypoxia, chronic thromboembolic obstruction, or a range of miscellaneous conditions. Because several mechanisms may coexist, diagnosis and classification must integrate haemodynamics with the…

…postoperative hypoxaemia. Hypoxaemic failure where high flow nasal oxygen is insufficient and the carbon dioxide is normal. Bilevel NIV: Acute exacerbation of COPD with respiratory…

…severe airflow obstruction pH below 7.35 with raised pCO₂ Acute or acute on chronic hypercapnic respiratory failure Rapidly falling pH An urgent ventilatory problem…

…respiratory failure with severe hypoxaemia, severe anaemia, and hypotension or shock. Conversely, mechanisms that increase myocardial oxygen demand include sustained tachyarrhythmia and severe hypertension, with…

…arrest. The most common acute symptoms are dizziness (pre syncope), hypotension (chock), syncope, chest pain, heart failure and cardiac arrest. In cases with intermittent symptoms…

…example a Glasgow Coma Scale below 8 Vomiting together with clear neurological impairment Respiratory failure or respiratory arrest Clinical signs of raised intracranial pressure or…

…overdoses, etc.). Among victims in whom the cardiac arrest was caused by VT or VF (e.g acute or chronic myocardial ischemia, heart failure, etc.)…

…Examples Acute coronary atherothrombosis Plaque disruption or erosion with thrombosis Reduced myocardial perfusion Coronary spasm, microvascular dysfunction, coronary embolism, coronary dissection, hypotension, shock, respiratory failure…

…acute pancreatitis, alkalosis due to hyperventilation, rhabdomyolysis (particularly the initial phase), sepsis, malignancies with osteoblastic metastases, diminished calcium absorption and/or enhanced calcium excretion, chronic…

…morphine Morphine has an active renally excreted metabolite that causes late sedation and respiratory depression Marked liver failure A reduced dose of all of them…