…pinhole. A slit lamp with a cobalt blue filter; alternatively a magnifying loupe and a Wood's lamp. Oxybuprocaine or tetracaine drops (topical anaesthesia). Fluorescein…

…Mitral flow velocities are measured using Pulsed Doppler. Tissue Doppler is used to measuring mitral annular plane velocity. The American Society for Echocardiography (ASE) and…

…the massive transfusion protocol. Plasma and platelets: in ongoing bleeding with coagulopathy, or as part of balanced transfusion in massive haemorrhage. Transfusion thresholds in the…

…usually with colour coded connectors (red and black) and a stiffening stylet. A Rostock filter or an equivalent amplifier unit between the electrode and the…

…the head of the humerus. A pressure bag or a 50 mL syringe with a three way tap — intraosseous flow requires pressure ; gravity is not…

…of pulmonary involvement in systemic disease, for example rheumatoid arthritis or scleroderma, and during treatment with pulmonary toxic drugs. Contraindications Forced expiration raises the pressure…

…must filter out all sound waves reflected by other structures, notably sound waves reflected by blood. This is achieved by filtering out signals with low…

…that myocardium generates reflections with high amplitude and low Doppler shift. To analyze reflections from the myocardium, the ultrasound machine filters out all other reflected…

…Thus, the electrical potential difference is the difference in the electrical potential detected by two (or more) electrodes. The previous discussion outlined how depolarization and…