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Physics of myocardial perfusion imaging (SPECT, PET): Radiotracers, perfusion, blood flow and viability

…hour half life, entering cardiomyocytes via the Na + /K + ATPase pump. It undergoes redistribution, making it suitable for assessing viability and hibernating myocardium, at the…

Peripheral venous cannula and intraosseous access

…fluid or blood products. Contrast medium for CT (this requires a large bore cannula in a suitable vein). Standby access in a patient at risk…

Corticosteroids: quick reference for dose equivalents and stress dosing

…or an infusion Suspected adrenal crisis Give the corticosteroid immediately. Do not wait for laboratory results. Take a serum cortisol and ACTH first only if…

Arterial line

…balloon pump. Assessment of stroke volume variation as part of fluid management. Contraindications Infection, burn or trauma over the insertion site. Insufficient collateral circulation to…

Digoxin: Dosing, Therapeutic Range and Toxicity Management

…in its inhibition of the Na+ K+ ATPase, the enzymatic equivalent of the cellular sodium pump. Digoxin binds reversibly to a specific high affinity site…

Extracorporeal cardiopulmonary resuscitation (ECPR)

…without the need for chest compressions. ECMO is considered in individuals who can survive with satisfactory quality of life if the circulation is temporarily supported…

Left atrial enlargement (P mitrale) & right atrial enlargement (P pulmonale) on ECG

…enlargement (P pulmonale) The atria may become dilated and/or hypertrophic during pathological circumstances. As for ventricular enlargement, the ECG cannot differentiate dilatation from hypertrophy…

Right ventricular strain: definition, causes, echocardiography

…Afterload : Afterload is the resistance that the the ventricle must overcome to pump blood out into the pulmonary artery. Resistance may increase in, for example…

STEMI: Primary PCI and System-of-Care Time Targets

…two broad categories: Electrical complications , particularly ventricular arrhythmias. Mechanical or pump failure complications , including heart failure and cardiogenic shock. Most out of hospital deaths occur…

Torsades de Pointes: Definition, Characteristics, and Management

…the rhythm [4]. Mechanical Support : Extracorporeal membrane oxygenation (ECMO) or intra aortic balloon pump (IABP) may be required for hemodynamic support [4]. Advanced Therapies : Consideration…

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