ECG Video lecture: Assessment of the QT interval (QTc interval) Corrected QT interval (QTc) calculator Open the calculator →

…a normal radiograph. Contraindications An open fracture or a wound that needs to be inspected — use a windowed splint or external fixation. Established or impending…

…cuticle — Hutchinson's sign). An open fracture of the distal phalanx with a subungual haematoma — manage it as an open fracture. The anatomy of the…

…ear discharge or pain on contact with water. A history of ear surgery in which the middle ear may be open (a mastoid cavity, mastoidectomy)…

…always an orthopaedic surgeon, and usually general anaesthesia. An open dislocation. Inadequate analgesia or sedation — the procedure must not then be started. Radiography before reduction…

…and all bites on the hand. These are as a rule left open. Facial bites can be sutured after careful debridement because of the cosmesis…

…Open the calculator → Normal values for QTc interval Bazett's formula is several decades old and has been questioned because it performs poorly at…

…precisely the point. Ask the patient to keep the eyes open and look straight ahead — without open eyes there is no diagnosis. Procedure The Dix…

…parallel to the floor and the index finger supported against the patient's nose and cheek . Open the speculum upwards–downwards, never sideways without support…

…4. Open the mouth, introduce the mask with the aperture facing the tongue and follow the hard palate with your index finger as a guide…

…with your national or regional poison control centre. An open flame or smoking in the room: a fire hazard. Preparation and equipment A pulse oximeter…

…which scenario head tilt chin lift should only be used if other methods fail to open the airway. Figure 1. Methods to open the airway…

…and ask if the victim is awake. Breathing : Open the airway by tilting the head backward and lifting the chin up. Does the person breathe…

…Epidemiology and outcome of adult out of hospital cardiac arrest of non cardiac origin in Osaka: a population based study. BMJ Open 2014;4:e006462…

…Epidemiology and outcome of adult out of hospital cardiac arrest of non cardiac origin in Osaka: a population based study. BMJ Open 2014; 4:e006462…

…Epidemiology and outcome of adult out of hospital cardiac arrest of non cardiac origin in Osaka: a population based study. BMJ Open 2014; 4:E006462…

…Epidemiology and outcome of adult out of hospital cardiac arrest of non cardiac origin in Osaka: a population based study. BMJ Open 2014;4:e006462…

…myocardium like a wavefront in water. Specific ion channels located on the cell membranes open and close during de and repolarization, such that ions (Na…

…Upon stimulation, sodium (Na+) channels open which causes a rapid influx of sodium and depolarizes the cell. Contractile cells start to contract a few milliseconds…

…Epidemiology and outcome of adult out of hospital cardiac arrest of non cardiac origin in Osaka: a population based study. BMJ Open 2014; 4:E006462…

…pressure volume relationship and ECG waveforms during systole and diastole. When left ventricular pressure exceeds diastolic pressure in the aorta, the aortic valve opens and…

…hips stacked vertically. The back must be flexed like a bow — it is that flexion that opens the interspaces between the spinous processes. Sitting and…

…without changes in ventricular volume. This isovolumetric relaxation lasts for approximately 80 milliseconds and ends when the mitral valve opens. The time interval between aortic…