…regardless of heart rate) among persons with heart disease. Alternating block (right and left bundle branch block alternating from one beat to another) is uncommon…

…and potential future refinements underscore its enduring relevance in cardiology. By combining anatomical and clinical data, it continues to support heart teams in delivering persona

…IHCA). There are no risks in instructing a layperson to perform chest compressions on an unconscious individual. The potential benefit outweighs the risks. Several studies…

…note that bradycardia due to dysfunction in the sinoatrial node is referred to as sinus node dysfunction (SND). If a person with ECG signs of…

…note that bradycardia due to dysfunction in the sinoatrial node is referred to as sinus node dysfunction (SND). If a person with ECG signs of…

…Population to which SCORE2 and SCORE2 OP apply SCORE2 and SCORE2 OP are intended for apparently healthy people or for individuals with elevated BP who…

…healthy individuals. Atrial flutter causes characteristic ECG changes, as discussed below. Atrial flutter tends to accompany atrial fibrillation, although some individuals may only present with…

…the arrhythmia is unusual among persons younger than 50 years of age. The overall prevalence in a Western population is 1.0% to 1.5%…

…inability to adequately increase heart rate Chronotropic incompetence is an independent predictor of overall and cardiovascular mortality. The condition is very common among individuals with…

…the atherosclerotic artery. Whenever oxygen demand exceeds oxygen (blood) delivery ischemia occurs and this manifests with chest discomfort referred to as angina pectoris. If the…

…beat). This yields more time to fill the ventricles with blood (increased ventricular filling). Persons with premature beats might perceive this as palpitations, because of…

…blockers) without the risk of worsening the bradycardia. Persons with sick sinus syndrome should receive an artificial pacemaker to reduce symptoms and increase function. However…

…or with dyspnea, nausea, unexplained weakness, or a combination of these symptoms. The diagnosis requires elevated levels of cardiac troponins. In addition to elevated troponins…

…rS complexes. Causes of left anterior fascicular block (LAFB) LAFB may occur in persons who are otherwise healthy. The majority of those with LAFB, however…

…shoulder dislocation, with an effect equivalent to sedation and fewer adverse effects Digital nerve block The standard in finger dislocation Procedural sedation Propofol, ketamine or…

…with hypoglycaemia. 2. A documented low plasma glucose during the symptoms. 3. Resolution of the symptoms when the glucose is normalised [3]. A healthy person…

…Intervention Included in BLS NNT to save 1 person Reference Early detection of cardiac arrest Yes 11 Berdowski et al Bystander CPR Yes 15 Hasselqvist…

…drainage is the treatment; antibiotics are normally neither necessary nor sufficient in an uncomplicated cutaneous abscess in an otherwise healthy person. There are two ways…

…consented to donation. The person's wishes are established in this order: 1. The donation register held by the Swedish National Board of Health and…

…an inactive person becomes even modestly active, while additional activity continues to confer benefit with progressively smaller incremental effects. Some activity is preferable to none…

…professionals with the skills and equipment required. Although ACLS is more advanced and costly than the interventions available in BLS, the number needed to treat…

…the United States. No trends, with regard to age or sex, have been observed in Sweden between 1990 and 2021 ( Rawshani et al ). Incidence of…

…high value As required, in addition to the mealtime dose Never stop basal insulin in a person with type 1 diabetes , not even before fasting…

…complex). This yields more time to fill the ventricles with blood (increased ventricular filling). The person with premature beats might perceive this as palpitations, because…

…pmol/L Free T3 3.1–6.8 pmol/L TSH is logarithmically related to T4 — a small change in T4 produces a large change…

…are to be delivered. 2. Designate a team leader and one person responsible for recording the transfusions, the sampling, the incoming products and contact with…

…when interrogating witnesses, bystanders and health care professionals. The person may have some circulation despite circulatory collapse (e.g., with sustained ventricular tachycardia). Experimental and…

…analysis of three phase 3 trials, tenecteplase was non inferior to alteplase with respect to an excellent functional outcome, without an increased risk of symptomatic…

…neuromuscular blockers, and a person designated to keep time and read out the number of attempts. Laryngeal mask sizes Size Patient weight Maximum cuff volume…

…irregular waves with varying morphology and amplitude. No P wave, QRS complex or T wave can be seen. This is pathognomonic (unique) to ventricular fibrillation…

…sex , and race based percentile Comparison with the expected score for a person of the same age and sex CAC may also reveal extracoronary findings…

…Extremely light exertion 8 9 Very light exertion For a healthy person, 9 is equivalent to walking slowly at his or her own pace for…

…the subendocardium during exercise; this manifests with ST segment depressions with upsloping ST segment during exercise but the person is asymptomatic). No changes on resting…

…young and healthy individuals. The phenomenon is explained by the heart rate variation caused by respiration. The heart rate increases during inspiration due to diminished…