…features or an inadequate response. First line treatment is oxygen in hypoxaemia, repeated doses of an inhaled short acting β2 agonist, ipratropium in more severe…

…transient rate related conduction abnormalities, pacing related repolarization changes, and inadequate coronary flow relative to myocardial oxygen demand. Consequently, an elevated cardiac troponin concentration and…

…Two things set the COPD exacerbation apart from many other causes of acute dyspnoea: oxygen must be titrated cautiously and the blood gas determines the…

…risk of hypercapnia High flow nasal cannula 20–60 L/min 21–100 %, adjustable Humidified and warmed gas; it provides some positive airway pressure and…

…review on this topic [1]. References [1] G Heusch. Myocardial Ischemia: Lack of Coronary Blood Flow or Myocardial Oxygen Supply/Demand Imbalance? Circ Res. 2016…

…refers to a reduced partial pressure of oxygen in the blood. Asphyxia is characterized by insufficient ventilation, leading to hypoxia. Etiologies of hypoxic cardiac arrest …

…modulation of sarcolemmal and mitochondrial potassium ATP channels. Levosimendan alleviates heart failure symptoms, increases cardiac output, and lowers pulmonary artery pressure without increasing myocardial oxygen…

…Pressures in the heart and pulmonary circulation Flow, resistance and oxygen transport Formulas Mean arterial pressure (MAP) = diastolic + (systolic − diastolic)/3 Cardiac output =…

…is calculated as the heart rate divided by the systolic blood pressure. A value of around 0.9 to 1.0 or higher in an…

…and reduces myocardial oxygen consumption. Time to onset of action: 5 minutes. Effects Lowers blood pressure, reduces heart rate, myocardial oxygen consumption and myocardial contractility…

…Mechanism of action Beta 1 adrenergic blocker. Effects Lowers blood pressure, reduces heart rate, myocardial oxygen consumption and myocardial contractility. Less pronounced blood pressure lowering…

…myocardial oxygen demand and coronary blood supply, resulting in myocardial hypoperfusion or ischaemia. Ischaemia is commonly precipitated by exertion, emotional stress, or another form of…

…completeness and duration of occlusion, collateral flow, myocardial oxygen demand, spontaneous thrombus lysis, and the quality of tissue level perfusion after epicardial flow is restored…

…myocardial oxygen demand and coronary blood supply. Stress increases myocardial oxygen requirements, principally through increased heart rate and contractility. In the presence of a flow…

…Type 2 myocardial infarction (MI) is defined as an ischaemic myocardial injury occurring in the context of a mismatch between myocardial oxygen supply and demand…

…by the positive inotropic effects of the sympathetic stimulation. Increased stroke volume and increased heart rate lead to increased cardiac output . Systolic blood pressure increases…

…to elevate myocardial oxygen demand (or simulate increased demand using vasodilatory agents). A radiotracer is administered at peak stress to capture blood flow distribution under…

…balance, renal function, electrolytes and supplemental oxygen [1]. Distinguish between: Acidaemia and alkalaemia , which describe the current pH of the blood. Acidosis and alkalosis , which…

…dialysis catheter, not an ordinary triple lumen catheter). Measurement of central venous pressure and central venous oxygen saturation. Repeated blood sampling during intensive care. Exhausted…

…the unit. Preparation and equipment A device capable of both CPAP and bilevel ventilation, or alternatively flow generated CPAP with a PEEP valve. Masks in…

…3,4]. Do this first 1. Assess vital signs and level of consciousness immediately. 2. Check oxygen saturation and capillary glucose. 3. Exclude immediately treatable…

…oxygenation despite maximal oxygen or non invasive ventilation. Inadequate ventilation with a rising pCO₂ and respiratory acidosis, or a markedly increased work of breathing with…

…raises the intracranial pressure. Circulation Parameter Target Comment : : : MAP ≥ 65 mmHg 80–85 mmHg in chronic hypertension or when there are signs of inadequate perfusion…

…vomiting and secretions. Suction and give oxygen as needed. Intubate for a threatened airway, a marked risk of aspiration, or failure that is not rapidly…

…work of breathing, a new oxygen requirement, a saturation below 93 per cent on air, or a falling PaO2 Circulation A systolic blood pressure of…

…therapy. I C Symptom relief Symptom Management Recommendation Level of evidence Hypoxia Oxygen is indicated if SaO2 < 90% or PaO2 < 60 mmHg. I…

…increases myocardial oxygen demand through increases in heart rate, myocardial contractility and blood pressure. When coronary blood flow cannot increase adequately because of flow limiting…

…causes producing myocardial oxygen supply–demand imbalance. Coronary mechanisms Coronary mechanisms include: Plaque rupture or plaque erosion with thrombosis, despite the absence of an angiographically…

…infarction. The degree of troponin elevation does not by itself establish the mechanism. Increased concentrations may result from acute coronary atherothrombosis, oxygen supply–demand imbalance…

…cardiac metabolic efficiency, including increased oxygen delivery and beta hydroxybutyrate oxidation Reduced sodium hydrogen exchanger subtype 3 activity Attenuation of oxidative stress, inflammation and fibrosis…

…towards the subepicardium over several hours. The extent and tempo of injury are influenced by collateral flow, myocardial oxygen consumption, and intermittent occlusion with reperfusion…

…because cardiac output diminishes in parallel with increasing myocardial load (and hence oxygen demand). The most common causes of acute aortic regurgitation are aortic dissection …

…Administer 100% oxygen promptly and ensure oxygen saturation remains 94%. Provide an intravenous or intraosseous fluid bolus, beginning with 500 ml of normal saline over…

…Moreover, for optimal management in the context of sepsis induced cardiac arrest, consider the following recommendations: Administer 100% oxygen at the maximum flow rate . Hypoxia…

…good neurological function, which is why CPR should be considered even with extended no flow periods, in cases of unwitnessed cardiac arrests, as well as…

…to estimate the energy cost of physical activity. One metabolic equivalent (1 MET) is defined as the amount of oxygen consumed while sitting at rest…

…cardiac myocytes require aerobic metabolism (oxygen) to produce sufficient quantities of ATP. This implies that the heart requires continuous blood flow to maintain cellular function…

…to myocardial oxygen demand, and myogenic responses, where vascular smooth muscle constricts or dilates in response to changes in intraluminal pressure. Coronary blood flow is…

…coupled to oxygen supply. The myocardium is capable of upregulating or downregulating metabolism (i.e contractility) according to oxygen supplies. Consequently, reduced oxygen supply would…

…Biological death usually occurs within minutes thereafter; survival is highly unlikely after 8–10 minutes of no flow (i.e. cardiac arrest without any circulation)…

…progressive, and highly complex lipid driven inflammatory disease of the arterial intima that serves as the fundamental pathophysiological substrate for acute coronary syndromes (ACS), including…

…receive oxygen from the blood in the ventricular cavity. The right bundle branch then runs deeper into the myocardium, where roughly one third of its…

…conditions (oxygen is required for ATP synthesis [ATP is the primary energy source in all cells]). The heart consumes approximately 30 kilograms of ATP per…

…are capable of normalizing their membrane potentials immediately as oxygen becomes available. Recall that ST segment elevations also become normalized as a part of the…

…in 90% of the cases. As compared with the right ventricle, the left ventricle contracts against much greater resistance (i.e. the pressure in the…

…aphasia, hemianopia or hand paresis in a person of working age Blood pressure Measure initially in both arms if this does not delay reperfusion treatment…

Akutsjukvård Lathundar Basic principle Anaphylaxis is a rapidly developing systemic hypersensitivity reaction that can cause life threatening compromise of the airway, breathing or circulation. Skin…

…Peripheral venous cannula, saline flush. ECG monitoring, pulse oximetry and blood pressure measurement throughout the test. Oxygen, suction, a bag and mask, and access to…

…resistance; 12 lead ECG with continuous recording; automated or manual blood pressure measurement. Resuscitation trolley with defibrillator, oxygen, suction and emergency drugs in the room…

…oxygen and complete equipment for intubation and ventilation must be to hand before the lavage begins. The head of the trolley must be able to…

…of the correct length (see the table), a syringe of the correct size, a sharps bin. For vaccination: adrenaline 1 mg/mL, an antihistamine, oxygen…

…line is necessary to achieve an optimal result. Overview of vasopressors and inotropes Vasoconstriction Vasodilatation Positive inotropy Phenylephrine Vasopressin Midodrine Noradrenaline Adrenaline, high dose Dopamine…

…92 % where there is a risk of carbon dioxide retention (COPD, obesity hypoventilation, neuromuscular disease). Both hypoxia and liberal oxygen administration are associated with worse…

…is an emergency. Infection can progress rapidly, while the typical local signs of inflammation may be faint or absent. Take cultures immediately, but never let…

…is given. The serious incidents almost always arise when the principle of titration is abandoned — when a fixed dose is given without assessment, when a…

Procedurer Almost all the complications of pleural aspiration arise from two errors: the needle is placed in the wrong site, and too much is drained…

…Monitoring: pulse oximetry, blood pressure, ECG and capnography during sedation, with oxygen and a bag available. Drugs for procedural sedation and analgesia according to local…

Procedurer The test measures the ability of the adrenal cortex to respond to maximal ACTH stimulation, and it is rarely the injection itself that determines…

…this is practicable. Give oxygen if hypoxaemic. Use a bag and mask if ventilation is inadequate. Monitor the saturation, respiratory rate, blood pressure, heart rate…

…cable, not through the pads. A pulse oximeter, a blood pressure cuff, and an arterial line for prolonged pacing. Venous access, oxygen, suction, airway equipment…