…and appear brighter on the image. Structures with low echogenicity reflect less ultrasound and become darker in the image. Acoustic shadowing Some structures have very…

…the transducer is an acoustic lens . This is the hard rubber that focuses the ultrasound waves, which results in less scatter of the waves and…

…ms). Increasing the number of ultrasound lines or image depth will reduce the frame rate since more time is required to complete each frame. Thus…

Procedurer Edrophonium is a very short acting cholinesterase inhibitor: the effect appears within less than a minute and has gone after 5–10 minutes. That…

Endokrinologi & metabolism Lathundar An inpatient has a different insulin sensitivity from at home: less food, more stress, often corticosteroids, often impaired renal function. Prescribe basal…

…is done wrongly: the patient pinches the nasal bone instead of the soft part, and lets go after two minutes. Management is a ladder — compression…

…NA sp ambiguous hypotension(Pediatric Use) mild BAL DIMERCAPROL Dimercaprol Mixed ar less tachycardia/blood pressure mild Trelstar TRIPTORELIN PAMOATE TRIPTORELIN PAMOATE Mixed wp most…

…alpha adrenergic blocker with rapid onset of action. Labetalol has less antihypertensive efficacy as compared with nicardipine. Labetalol is safe in patients with coronary artery…

…myocardial oxygen consumption and myocardial contractility. Less pronounced blood pressure lowering effect than esmolol and labetalol. Time to onset of action 20 minutes Duration of…

…blood, or, less commonly, a mass. Tamponade occurs when intrapericardial pressure equals or exceeds right atrial pressure. The haemodynamic consequences are progressive impairment of right…

…beans, whole grains, nuts and seeds, yogurt, seafood and plant oils. They contain less refined grain, starch, added sugar, salt, trans fat, processed meat and…

…and a high probability of unstable angina (UA), and patients whose initial findings are less definitive. The defining electrocardiographic feature is the absence of persistent…

…one third of patients with inferior infarction. Extensive involvement is less common in patients with inferoposterior left ventricular infarction, while infarction confined predominantly to the…

…tachyarrhythmia, bradyarrhythmia or asystole. The tachyarrhythmias include ventricular fibrillation (VF) and pulseless ventricular tachycardia (VT). The bradyarrhythmias include all bradyarrhythmias, pulse less electrical activity (PEA)…

…abnormal automaticity or re entry mechanisms; triggered activity is a less frequent cause. The atrial rate typically ranges from 120 to 250 beats per minute…

…with a frequency of around 40–60 beats per minute. In case of sinus arrest (or any scenario in which atrial impulses do not reach…

…When performing emergency echocardiography, or any examination without a proper examination table, it may be difficult to acquire images in the left lateral decubitus position…

…ecofatical), but, depending on the etiology, may be more or less echogenic. It is important to estimate the volume, echogenicity and location of the effusion…

…to the pulmonary artery or its branches. In the majority of cases, the thrombus is formed in the deep veins of the legs or pelvis…

…or downsloping) or convex ST segment strongly suggest acute transmural ischemia ( Figure 1 A ). Concave ST segment elevations, on the other hand, are much less…

…least two occasions, and preferably confirmation by home measurement or 24 hour recording — the thresholds for which are lower than for office measurement. Classification of…

…bony prominences Plaster bandages and plaster slabs (calcium sulfate) Mouldable, cheap, heavier, less strong, takes longer to set Synthetic cast material (fibreglass) Lighter, stronger, radiolucent…

…and in patients with diabetes or renal failure the index may be falsely normal because of medial sclerosis — in that case add toe pressure measurement…

…oxygen requirement, a saturation below 93 per cent on air, or a falling PaO2 Circulation A systolic blood pressure of 100 mmHg or less, a…

…4 mm punch from a lesion less than 48 hours old Also take a biopsy for immunofluorescence Panniculitis Excision or a deep punch down into…

…intestinal transit. Coffee ground vomiting is less specific than fresh haematemesis and can also be seen when the bleeding is slow or has stopped. The…

[calc_bmi] Body Mass Index (BMI) is a widely used measure of body fat based on height and weight. It is calculated by dividing body…

…per year, whereas larger aneurysms generally expand more rapidly. Rapid enlargement is defined in the source recommendations as at least 10 mm per year or…

…may cause: Aortic regurgitation Haemopericardium or pericardial effusion Aortic rupture Proximal aortic complications Malperfusion and pulse deficits are less common in type A IMH than…

…and severity of pain The presence and extent of sensory loss Any motor deficit or paralysis Skin colour and temperature Capillary refill and venous filling…

…elevation myocardial infarction (STEMI), ischemic injury can disrupt the conduction system at any level, producing atrioventricular (AV) or intraventricular blocks. Isolated sinus bradycardia in the…

…progressive increases in systolic blood pressure (SBP), while diastolic blood pressure (DBP) rises less steeply and may remain stable or decline later in life. Consequently…

…important therapeutic objectives. Evidence from randomized trials is often less applicable to very frail or multimorbid patients because these groups have historically been underrepresented. Consequently…

…reduce this residual risk without necessarily altering lipid concentrations, blood pressure or other conventional risk factors. Colchicine is an established anti inflammatory drug that may…

…and does not require intravenous access, premedication, or special preparation. The most widely used quantification method is the Agatston score, which incorporates both the area…

…or determine whether ischaemia would occur at workloads greater than those achieved during testing. Exercise ECG has become less prominent as a primary diagnostic test…

…history and less likely in an older patient with non classical features. Dilated cardiomyopathy (DCM) has a substantially more diverse genetic basis. Pathogenic or likely…

…particularly in peripheral arterial disease. The relationship between triglyceride concentrations and aortic disease is less clearly defined, although triglycerides may contribute to the development and…

…the wall, creating a true lumen and a false lumen separated by an intimal flap. Propagation may be antegrade or, less commonly, retrograde. Distal re…

…from those of LDL, and elevated Lp(a) may confer greater risk per particle or unit of cholesterol than LDL cholesterol. Clinical implications High Lp…

…on residual LDL receptor expression. PCSK9 monoclonal antibodies are less effective in homozygous FH when residual LDL receptor function is limited. Clinical Indications PCSK9 inhibitors…

…device resetting, inhibition of pacing, inappropriate ICD therapy, or, less commonly, device damage. Oversensing is more likely with unipolar leads. Electrocautery is the most frequent…

…balance. The principal sporadic subtypes are: Aldosterone producing adrenal adenoma Bilateral adrenal hyperplasia Primary or unilateral adrenal hyperplasia Rare aldosterone producing adrenal carcinoma Less commonly…

…3. What is the recommended action if a QTc value is borderline or abnormal and the heart rate is less than 50 beats/min? A…

…rupture with tamponade, and less common causes such as severe pre existing valvular disease or excessive beta blocker or calcium channel blocker exposure. The incidence…

…infarction (STEMI) is a working diagnosis based on persistent ST segment elevation or an equivalent electrocardiographic pattern in a patient with symptoms of myocardial ischaemia…

…wave. Because of the long duration of the plateau phase most contractile cells are in this phase at the same time (more or less). Moreover…

…angina that has become more frequent, more prolonged, or provoked by less exertion. Angina occurring after a recent myocardial infarction. UA belongs to the broader…

…distinction less critical. Performance involves sedation (e.g., intravenous midazolam, propofol, or etomidate), routine blood pressure and oximetry monitoring, availability of atropine, isoproterenol, or transcutaneous…

…presentation is palpitations or syncope. ARVC can, however, cause ventricular tachycardia, which may degenerate into ventricular fibrillation at any age. Exercise, or any other activity…

…pulse generator or dislodgement or fracture of the leads. External causes are less common and include electrolyte disorders, metabolic disorders, hypoxemia, antiarrhythmic drugs, or electromagnetic…

…low in healthy subjects; the 99 th percentile is less than a few nanograms per liter of blood (typically <5 ng/L). This is explained…

…heart failure, chronotropic incompetence may be caused by beta blockers, amiodarone or digitalis. Sinus node dysfunction (SND) is a common cause of chronotropic incompetence. Definition…

…disorders 1. Sodium Increased (hypernatremia) and decreased (hyponatremia) sodium levels do not have any effect on the ECG, nor cardiac rhythm, or impulse conduction. 2…

…also referred to as the reference line or isoelectric line ) of the ECG curve. The amplitude of any deflection/wave is measured by using the…

…examination should be available or performed urgently to evaluate ventricular and valvular function. Levosimendan drug is generally well tolerated. Severe adverse effects are less common…

…TCFAs). These vulnerable plaques possess a massive necrotic lipid core and a highly inflamed fibrous cap measuring less than 65 micrometers in thickness. Macrophage derived…

…and greater than 80 ms in children less than 8 years of age without meeting the criteria for RBBB or LBBB." These conduction delays may…

…However, the chest pain caused by NSTEMI and unstable angina is less severe than the pain in acute STEMI. This is explained by the fact…

…is also true; the stiffer the myocardium, the slower and less pronounced the relaxation. Left ventricular compliance Multiple factors affect ventricular compliance. These factors include…