…palpitations, back pain and selected cases of upper abdominal pain. An ECG recording costs approximately $10 (10€) and may reduce morbidity and mortality substantially in…

…The diagnosis requires elevated levels of cardiac troponins. In addition to elevated troponins, the patient must display either symptoms or ECG changes consistent with myocardial…

…More distal disease may cause foot symptoms, although lower extremity symptoms are much more common than upper extremity symptoms. The severity of symptoms should be…

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

…cTnI and cTnT are specific to cardiac muscle cells. Cardiac troponin levels are extremely low in healthy subjects; the 99 th percentile is less than…

…ulcer bleeding are managed differently from the first minute. Peptic ulcer remains the commonest cause of upper gastrointestinal bleeding, but the differential diagnosis includes oesophagitis…

…female Normal <440 ms <430 ms <450 ms Upper limit 440–460 ms 430–450 ms 450–470 ms Prolonged 460 ms 450 ms 470…

…ischaemia (ALI) is an abrupt reduction in arterial perfusion of an upper or lower limb that causes tissue metabolic requirements to exceed available blood flow…

…presented in the parenthesis). Values without confidence interval are simply the 98 th percentile (i.e the upper reference limit). Age <1 day 1–3…

…heaviness, burning, or discomfort in the chest and may extend to the arms, shoulders, neck, jaw, upper back, abdomen, or epigastrium. Dyspnoea, nausea, vomiting, diaphoresis…

…arms, neck, jaw, upper back, and abdomen, as well as dyspnea and nausea (anginal equivalents) [7]. Clinicians must consider both cardiac and non cardiac etiologies…

…Myocardial injury Myocardial injury is a biochemical diagnosis defined by at least one cardiac troponin value above the assay specific 99th percentile upper reference limit…

…presented in the parenthesis). Values without confidence interval are simply the 98 th percentile (i.e the upper reference limit). Age <1 day 1–3…

…evident, ventricular tachycardia may appear more polymorphic in one lead (the upper lead). ECG 2 . Although the signal in the upper lead appears very disorganized…

…root, alae nasi, upper lip) Venous drainage towards the cavernous sinus Surgeon or ENT; often antibiotics Palm, fingers, tendon sheaths Deep compartments and tendon sheaths…

…irrespective of sex Mid upper arm circumference Midpoint of the upper arm < 23 cm suggests undernutrition in adults Calf circumference Largest circumference < 31…

…no conversation Cuff width ≥ 40% of the upper arm circumference — a cuff that is too narrow gives a falsely high reading The cuff at heart…

…threshold (Hb) : : Most stable adult inpatients, including intensive care 70 g/L Known cardiovascular disease, postoperatively after cardiac surgery 80 g/L Acute coronary syndrome…

…days Hospital acquired pneumonia, non severe cefotaxime 1–2 g × 3 IV 8 days including oral step down Hospital acquired pneumonia, severe piperacillin–tazobactam 4…

…any decision to limit treatment when time allows. There is complete upper airway obstruction where laryngoscopy will not succeed; plan for a surgical airway or…

…upper limit) / platelets × 100 1.0 suggests fibrosis Elastography kPa 15 kPa suggests advanced fibrosis Work up of unexplained raised liver tests Repeat the tests…

…radiograph alone belongs to an earlier era. The needle is inserted close to the upper border of the rib, never at the lower border where…

…The quality of the test determines its entire value: a poorly performed manoeuvre gives a falsely low FVC and thus a falsely normal FEV₁/FVC…

…device. Home blood pressure monitoring (HBPM): self measurement at home, generally with a validated upper arm oscillometric device. Ambulatory blood pressure monitoring (ABPM): automated measurement…

…atrium is activated passively. The upper boundary of this circuit may be located either anterior or posterior to the superior vena cava. A critical area…

…myocardial injury, defined by an elevated cardiac troponin (cTn) value with at least one value above the 99th percentile upper reference limit (URL). The injury…

…myocardial injury, demonstrated by a rising and/or falling troponin pattern with at least one value above the assay specific 99th percentile upper reference limit;…

…heart disease from pulmonary vascular disease. Although a PAWP of 12 mmHg represents the upper limit of normal in some assessments, a threshold of ≤15…

…injury. Myocardial injury Myocardial injury is defined by at least one cardiac troponin (cTn) concentration above the assay specific 99th percentile upper reference limit (URL)…

…tongue, and uvula causing airway obstruction Cardiovascular: Hypotension Circulatory collapse culminating in cardiac arrest Anaphylaxis can develop without dermatological or upper airway manifestations. Anaphylactic cardiac…

…explained below. The normal P wave contour on ECG The normal P wave (Figure 1, upper panel) is typically smooth, symmetric and positive. The P…

…arm electrodes are placed proximally on the upper arm. Placement of chest (precordial) electrodes are not changed but additional leads may be attached in children…

…diminishes, the PR interval becomes longer. The upper normal limit is 220 msec (0.22 sec). If the PR interval is greater than 220 msec…

…Arm pressure. Place the cuff on the upper arm. Locate the brachial signal in the antecubital fossa with the Doppler probe at 45–60° to…

…dose daily and follow creatinine. Underdosing in sepsis is more dangerous than exceeding the upper dose limit during the first 24 hours. Give the ful

…that make a seal impossible. Recent surgery on the oesophagus or upper gastrointestinal tract, ileus and ongoing upper gastrointestinal bleeding. Marked agitation or inability to…

…raised — the two decisions must never be conflated. There is no absolute upper age limit. Suitability is determined organ by organ in consultation between the…

…when perforation is suspected). A tonometer: an applanation tonometer on the slit lamp, or a hand held device (iCare, Tono Pen). Procedure Systematic examination 1…

…lies supine or sits. The upper arm is held adducted against the trunk and the elbow is flexed to 90 degrees. The forearm is moved…

…Urinary catheter with hourly urine output measurement — the treatment cannot be guided without reliable measurement of urine output. Baseline tests: blood gas with electrolytes, sodium…

…frequently involving the face, lips, tongue, and upper airway. Due to the risk of airway compromise, it represents a medical emergency. Evaluation and Physical Examination…

…The upper 99% limits of normal for corrected QT (QTc) values in the general population are 450 ms for men and 460 ms for women…

…with risk increasing particularly after 70 years Male sex Previous upper gastrointestinal disease Hepatic or renal disease Multiple cardiovascular risk factors Concomitant nonsteroidal anti inflammatory…

…ACS). Clinical manifestations may therefore change over time, including transitions between stable angina, angina or ischaemia with non obstructive coronary arteries (ANOCA/INOCA), post ACS…

…Meanwhile, deoxygenated blood in the superior vena cava (which returns blood from the head and upper limbs) also enters the right atrium. Oxygenated and deoxygenated…

…yields a positive P wave in lead II ( Figure 2 , right hand side). The P wave is always positive in lead II during sinus rhythm…

…produce major short and long term adverse consequences, including a substantially increased risk of periprocedural MI and death. Troponin elevation and myocardial injury Cardiac troponin…

…the circulation. Statins also reduce production of apoB 100 containing lipoproteins and exert effects beyond LDL C reduction, including modulation of inflammation, oxidative stress, endothelial…

…under acute coronary syndromes (ACS). Aortic dissection Pneumothorax Pulmonary embolism Mediastinitis (rare condition) In addition to these five conditions, there are numerous other causes of…

…coronary artery disease (discussed below). Moreover, prognostication, selection of diagnostic tests, and treatment strategies have been updated. For example, exercise stress testing is no longer…

…mentioned below are discussed in detail in other chapters, to which links are provided throughout the text. Heart rate During the first week of life…

…Meanwhile, deoxygenated blood in the superior vena cava (which returns blood from the head and upper limbs) also enters the right atrium. Oxygenated and deoxygenated…

…female Normal <440 ms <430 ms <450 ms Upper limit 440–460 ms 430–450 ms 450–470 ms Prolonged 460 ms 450 ms 470…

…troponin (hs cTn), with at least one value above the 99th percentile upper reference limit (URL) in the appropriate clinical context. Unstable Angina presents with…

…Figure 1. Upper tracing shows normal impulse conduction from the sinoatrial node to the atria. Atrial activation commences almost immediately after discharge of the impulse…

…coronary artery disease (discussed below). Moreover, prognostication, selection of diagnostic tests, and treatment strategies have been updated. For example, exercise stress testing is no longer…

…complexes. P waves may occur on the ST T segment ( Figure 1 , upper panel). The atrial rate is typically faster than the ventricular rate. It…

…rises rapidly with further volume increases. This is explained by the existence of an upper limit for ventricular compliance. The greater the left ventricular compliance…