…it is the shape of the tip and the technique that matter, not the calibre; choose instead the smallest size that will do the job…

Echocardiography Fractional shortening (FS) for estimating systolic function Fractional shortening (FS) is calculated by measuring the percentage change in left ventricular diameter during systole. It…

…arrhythmia or ischaemic ECG changes Concomitant cardiac disease Oxygen targets Patient Initial target saturation : : Known COPD or another clear risk of hypercapnic respiratory failure 88…

…chest pain. It is appropriate when the expected information is likely to change management. In patients with a very low probability of obstructive CAD, testing…

…Active Ingredient(s) Cardiotoxicity Label Section DICT Concern Cardiac side effects Severity of cardiotoxicity Hyaluronic Acid HYALURONIC ACID HYALURONIC ACID NA no no ZYPREXA Relprevv…

…without electrocardiographic changes, and with or without acute elevations in cardiac troponin concentrations. Based on the presenting electrocardiogram (ECG) and the presence of troponin elevation…

…manoeuvre. Indications Brief attacks of vertigo, seconds to a minute or so, that are provoked by a change of position — turning over in bed, lying…

…can cause hemiparesis, aphasia and radiological changes resembling ischaemic stroke. Glucose measurement is therefore always part of the initial stroke assessment [1]. Treat immediately when…

…then the frequency of the reflected sound waves will differ from the emitted sound waves. The change in frequency is referred to as the Doppler…

…small change in T4 produces a large change in TSH. During acute illness the TSH can be falsely low or high in the absence of…

…Warfarin has a narrow therapeutic index, a half life of several days and more than a hundred clinically relevant interactions. What determines whether the treatment…

…isolated numerical change in weight. Assessment should integrate the history, physical examination, laboratory data and diagnostic testing. Examination for congestion Useful bedside indicators of persistent…

…conducted with right bundle branch block morphology. This is an example of how changes in the length of the cardiac cycle causes aberration. Figure 1…

…common agent. These streptococci most often originate from the oral cavity and affect heart valves that have some kind of damage, change or degeneration. Endocarditis…

…markedly impaired renal function [3]. Urine output can change before creatinine but is not a pure marker of filtration. Oliguria may be due to hypovolaemia…

…syndrome (ACS) comprises a spectrum of clinical presentations caused by suspected acute myocardial ischaemia. It includes patients with recent changes in symptoms or clinical signs…

…exposure to cold. Relieving factors, including rest or medication. Time of day and temporal pattern. Change in frequency, severity, or exercise threshold. Potential anginal equivalents…

…suppression is maintained. A change in antiretroviral therapy is not recommended in individuals with previous virological failure if it risks loss of suppression. Clinical presentation…

…with manifest clinical disease are at high risk of progression and generally require all appropriate evidence based measures, including drug treatment and therapeutic lifestyle change…

…just proximal to the orifice. The change in flow profile results in the formation of a hemisphere with several layers. Flow velocity is equal within…

…two adequate intramuscular doses of adrenaline and initial fluid treatment Adrenaline infusion and advanced resuscitation in a monitored setting The grade can change within minutes…

…acute troponin elevation without evidence of ischaemia represents acute myocardial injury rather than MI. Persistent elevation without a significant dynamic change is consistent with chronic…

…independent risk factor [2] . This change reflects robust evidence that female sex alone, in the absence of other comorbidities, does not significantly increase stroke risk…

…defects without any change in their QRS appearance. Such conduction delays may be due to myocardial fibrosis, amyloidosis, cardiomyopathy or hypertrophy. Prognosis of nonspecific intraventricular…

…pars flaccida → signs of fluid (a level, bubbles, retraction or bulging). 6. Where needed, pneumatic otoscopy: a slight change of pressure with the bulb…

…but only if the examiner is trained. Brief attacks triggered by the position of the head relative to gravity: perform Dix Hallpike and, if needed…

…deviates most. What matters is which change can explain the pH, and whether the other variable lies within the expected range of compensation. Sample type…

…What usually ruins the examination is not the technique but the handling of the specimen — an aspirate that clots before the smears are made is…

…written expressions of intent. 3. Statements made verbally to the next of kin. Since the change in the law in 2022, the next of kin…

…Availability may change. Check the local formulary, the licensing status, the concentration, the dilution instructions and the local protocol before prescribing. Basic principles of treatment…

…sample. Indications Diagnostic paracentesis: Newly detected ascites — always. Every admission of a patient with known ascites. Clinical deterioration in a cirrhotic patient with ascites: fever…

…cardiogenic shock. UA itself is defined by a recent change in the pattern of myocardial ischaemia rather than by a particular symptom intensity alone. The…

…Fractional shortening (FS) is calculated by measuring the change (% reduction) in left ventricular diameter during systole. It is considered a poor measure of systolic function…

…been developed for the quantification of regional myocardial function. These methods analyze the motion and deformation (change in shape) of the myocardium during systole and…

…Delirium is common but often missed. On medical and geriatric wards a substantial proportion of older patients are affected, and the incidence is particularly high…

…and stabilise the patient Immediate assessment 1. Assess airway, breathing, circulation and level of consciousness. 2. Attach ECG, pulse oximetry and repeated blood pressure measurement…

…Document what has been changed, who is following it up and when. Sources American Diabetes Association, Standards of Care in Diabetes: diabetes care in the…

…important indication and an emergency procedure . An unclear arthritis, as part of the diagnostic work up. Haemarthrosis after trauma. A symptomatic effusion causing pain or…

…32 33–37 38 RV systolic area, cm2 7.5–16 17–19 20–22 23 RV fractional area change, % 32–60 25–31 18…

…These changes gradually lead to insufficient coronary perfusion (i.e myocardial ischemia and angina pectoris), ventricular dysfunction (heart failure) and arrhythmias. The annual risk of…

…1. ECG changes in left ventricular hypertrophy (LVH) and right ventricular hypertrophy (RVH). The electrical vector of the left ventricle is enhanced in LVH, which…

…changes, arrhythmias and conduction defects that occur due to antiarrhythmic drugs, beta blockers and calcium channel blockers (inhibitors). The reader will notice that most of…

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

…specific ST T changes are very common. Non specific ST depressions, T wave inversions (negative T waves) do not affect the management of cardiac arrest…

…the intensity of tracer uptake and associated myocardial changes: Mild defects : Characterized by decreased tracer counts while preserving normal wall thickness, often indicative of early…

…variations in heart rate are due to variations in the activity of the autonomic nervous system and changes in the automaticity of the sinoatrial node…

ECG Myocardial ischemia and infarction Myocardial ischemia: cellular changes, ECG signs and development of infarction Like all other cells in the human body, cardiac myocytes…

…none of the ECG changes or arrhythmias are unique to digoxin. One should always suspect digoxin as the trigger of an arrhythmia (in patients using…

…Rare ECG changes Increased QRS amplitude. Diminished T wave amplitude Osborn like waves. ST segment elevation in leads V1–V2. All degrees of AV block…

…medical treatment life threatening arrhythmias or cardiac arrest mechanical complications of acute myocardial infarction. acute heart failure recurrent dynamic ST segment or T wave changes…

…The T wave reflects the rapid repolarization (recovery) of the myocardium and T wave changes occur in numerous conditions. T wave changes are frequently misunderstood…

…without significant ST segment elevations on ECG. NSTE ACS is caused by partial occlusion of the artery (i.e. coronary blood flow is not completely…

…ST T changes are extremely common in every population. For example, almost 80% of men display ST segment elevations that are not caused by ischemia…

…1. Pathological R wave progression is indicative of previous myocardial infarction. U wave changes New U waves (in absence of bradycardia) may indicate ischemia. If…

…upper arm. Placement of chest (precordial) electrodes are not changed but additional leads may be attached in children under the age of 5 years. These…

…to changes in intraluminal pressure. Coronary blood flow is also influenced by sympathetic and parasympathetic influences; sympathetic stimulation leads to vasoconstriction through the release of…

…display of ECG leads in the 12 lead ECG Numerous conditions that can be diagnosed using the 12 lead ECG require that ECG changes occur…

…Haemodynamic instability or cardiogenic shock Life threatening arrhythmias or cardiac arrest after presentation Mechanical complications of myocardial infarction Recurrent dynamic ECG changes suggestive of ischaemia…

…URL; and Clinical evidence of acute myocardial ischaemia , demonstrated by at least one of the following: Symptoms of myocardial ischaemia. New ischaemic ECG changes. New…

…reflected in ST T changes on the ECG. (B) Note that the reference level for measuring deviation (elevation or depression) of the ST segment is…