…92 percent until the risk of hypercapnia has been assessed. 3. Take an arterial blood gas in respiratory compromise, low saturation, suspected carbon dioxide retention…

…hours duration): Due to cellular adaptations, rapid correction carries the risk of inducing osmotic demyelination syndrome (ODS). It is therefore recommended to raise serum sodium…

…an orthopaedic surgeon before attempting reduction. Posterior shoulder dislocation, which is often associated with fracture and requires an orthopaedic surgeon. Dislocation of a native hip …

…integrated assessment of six components: Symptoms Exercise performance (functional capacity, exercise capacity) Heart rate: maximal heart rate, heart rate response Blood pressure reaction ECG reaction:…

…progressive reduction of coronary blood flow sufficient to produce myocardial ischaemia and, when prolonged or severe, myocardial necrosis. It most commonly reflects atherothrombosis: disruption of…

…on the size of the thrombus and the plaque. The patient will experience severe chest pain due to the abrupt reduction of coronary blood flow…

…for defining the extent of coronary artery disease because it provides anatomical information while permitting functional assessment and, when appropriate, immediate percutaneous coronary intervention (PCI…

…radiotracers emit gamma photons directly. These gamma rays are detected by gamma cameras to create tomographic images of the left ventricle. In PET (Positron Emission…

…term to describe a reduction of blood flow to tissues and organs. A few decades later Cohnheim demonstrated that ligation of the left anterior descending…

…reflection of the electrical potentials generated by the left ventricle. QRS duration QRS duration is the time duration from the start to the end of…

…functional) capacity. Functional capacity is a strong predictor of both cardiovascular and overall mortality, offering incremental prognostic data beyond perfusion imaging and ECG reaction. Coronary…

Echocardiography Generating the ultrasound image The ultrasound transducer generates short bursts (pulses) of ultrasound waves. Reflected ultrasound waves are analyzed by the machine during the…

…initiation to restoration of coronary flow. Early reperfusion, reduction of myocardial energy requirements and mitigation of reperfusion injury are complementary objectives of initial STEMI management…

…LDL C reduction required is greater than can reasonably be obtained with a statin alone but does not necessarily require the larger effect of a…

…V5 V6. ECG example 6. Sinus rhythm, rapid progression of R waves in precordial leads. Slight ST segment elevation in leads V2 V3, which is…

…by about 13% of their length, but the sum of all contractions results in a reduction of the diameter and length of the ventricle by…

…reduction of the ST segment elevation by 50%) within 60 minutes after administration of thrombolysis. Otherwise, one must consider rescue PCI. For the purpose of…

…A1c (HbA1c) reduction, blood pressure, lipids and smoking cessation. Weight loss was considered extremely difficult across patient categories. However, the emergence of incretin based therapies…

…category of elevated blood pressure, defined as office SBP 120–139 mmHg or DBP 70–89 mmHg. This distinction supports a risk based approach because…

Psykiatri Akutsjukvård Lathundar Rapid summary Alcohol withdrawal occurs after an abrupt reduction or cessation of prolonged and heavy alcohol intake. The condition can develop despite…

…Congestion is a central expression of the heart failure syndrome and reflects excessive retention of sodium and water, with expansion of both the intravascular and…

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…

Referensvärden A diagnosis of hypertension is not made on a single reading. It requires repeated measurements on at least two occasions, and preferably confirmation by…

…The urgency varies: Object Urgency : : Button battery Immediately — leakage of fluid causes a chemical burn Two or more magnets (including in different nostrils) Immediately — pressure…

…crisis. Mechanism of action Phentolamine is a non selective alpha adrenergic blocker. Phentolamine reduces blood pressure while increasing catecholamine activity. Effects Primarily causes afterload reduction…

…and pathophysiology Acute limb ischaemia (ALI) is an abrupt reduction in arterial perfusion of an upper or lower limb that causes tissue metabolic requirements to…

…visual diameter reduction. Relevant determinants include: Lesion eccentricity Vessel tortuosity Calcification Plaque rupture or asymmetric filling defects Serial lesions Vessel size The relationship of the…

…sinus rhythm and a heart rate above 70 beats/min. The reduction in the combined outcome of cardiovascular death or heart failure hospitalisation was related…

…this form of hypertension was a physiological reaction that was necessary to maintain normal hemodynamics, hence the term essential . However, a growing body of science…

…can be counteracted with simultaneous administration of beta blockers). Effects Induces arteriolar vasodilation without effects on venous circulation. The reduction in systemic vascular resistance (SVR…

…and acute coronary syndromes (ACS). Its principal therapeutic objective is reduction of low density lipoprotein cholesterol (LDL C), the primary lipid target in contemporary secondary…

…dioxide retention for the latter. The treatment is also time limited by its very nature: a patient who has not responded within a couple of…

…disease (ASCVD). Atherosclerosis develops through the progressive deposition and retention of LDL C and other apoB containing lipoproteins within the arterial wall. This initiates inflammatory…

…associated with increased ASCVD risk. Management in this range therefore focuses principally on ASCVD prevention and reduction of LDL C, non HDL C and apolipoprotein…

…P wave in sinus rhythm. However, an ectopic focus may be located anywhere. If it is located near the atrioventricular node, activation of the atria…

…blocker exposure. The incidence of cardiogenic shock complicating STEMI has fallen with prompt reperfusion and reduction of infarct size. Earlier estimates approached 20%, whereas contemporary…

Procedurer The insertion itself is rarely the difficult part — it is the confirmation of the position that determines whether the tube is safe. A misplaced…

Cardiology Clinical medicine Definition and Pathophysiology Dietary patterns are the overall combinations of foods habitually consumed rather than isolated nutrients considered independently. For cardiometabolic health…

…outcome Reported benefit of cessation Cardiovascular disease overall Substantial reduction in cardiovascular events and mortality Established coronary disease Approximately 36% lower risk of premature death…

…response of both hypotension and bradycardia. However, some patients exhibit a primary cardioinhibitory response with pronounced bradycardia. Most cardioinhibitory events are due to sinus bradycardia…

…mutations in SCN5A lead to a reduction in the inward sodium current ($I {Na}$) and are identified in 20% to 30% of probands [7] …

…Figure 4. Sinus bradycardia. Click to zoom. Treatment of sinus bradycardia Benign causes of sinus bradycardia (e.g. vasovagal reaction, well trained athletes) do not…

…Discharge Management The STRONG HF trial demonstrated the safety and efficacy of an approach based on starting and titrating oral medical therapy for heart failure…

…heterozygous familial hypercholesterolaemia. The broader therapeutic principle is that LDL C reduction is associated with cardiovascular benefit regardless of the pharmacological route used. In patients…

…renal sodium and water excretion, and reduction of cardiac fibrosis through activation of the natriuretic peptide A receptor. NT proBNP is an inactive cleavage product…

…main stenosis is generally defined as a diameter reduction of at least 50%. Severe proximal disease of both the proximal left anterior descending and proximal…

…A reduction of at least 50% from baseline . The treatment sequence is generally: High intensity statin therapy at the highest tolerated dose. Addition of ezetimibe…

…insufficiency and cardiovascular disease, irrespective of diabetes status The clearest and most consistent cardiovascular signal is reduction in hospitalization for heart failure. Benefits also include…

…manifest at rest because of the severe reduction of coronary flow caused by acute atherothrombosis. Table 1: Myocardial and ECG reaction in various settings with…

…risk of fluid retention and impaired kidney function). Patients with bronchial asthma, chronic obstructive pulmonary disease, hay fever, or nasal polyps (increased risk of hypersensitivity…

…of LDL particles from the circulation. Statins also reduce production of apoB 100 containing lipoproteins and exert effects beyond LDL C reduction, including modulation of…

…why, or the patient at risk of carbon dioxide retention is given 15 litres on a reservoir mask and drifts off into a respiratory acidosis…

Cardiology Myocardial ischemia and infarction Definition and pathophysiology Atherosclerosis is a chronic, inflammatory disease of the arterial wall in which lipid accumulation, vascular cell dysfunction…

…more events than a major reduction in risk among a small number of high risk individuals. This principle underlies the population approach to cardiovascular prevention…

…wall, usually through formation of an intramural haematoma that compresses the true lumen. The resulting reduction in coronary blood flow may produce myocardial ischaemia, acute…

…A substantial reduction in pulmonary perfusion and the subsequent reduction in left ventricular preload lead to a cascade of hemodynamic alterations which may culminate in…

…Condition Overall strategy Common first choices : : : Acute aortic syndrome Immediate rate control and rapid reduction of the systolic blood pressure towards 100 to 120 mmHg…

…is weak, particularly for intermediate lesions. Even lesions with a visual diameter reduction of 50–70% may or may not produce ischaemia. Conversely, some lesions…

…The management of TdP and related malignant ventricular arrhythmias requires a structured approach focusing on rhythm stabilization, relief of triggers, and reduction of sympathetic drive…

…The first half of the P wave is therefore a reflection of right atrial activation and the second half is a reflection of left atrial…