…Clinical suspicion of a scaphoid fracture despite a normal radiograph. Contraindications An open fracture or a wound that needs to be inspected — use a windowed…

…been assessed for tendon and nerve injury will heal badly however neatly the suture is placed. The commonest cause of wound infection is retained contamination…

…lacerations, gunshot wounds) Asthmatic episodes Iatrogenic events (e.g., during central venous catheter insertion) Underlying lung pathologies In cases of benign pneumothorax, positive pressure ventilation…

…fails, since it restores oxygenation without requiring a view down into the larynx. The difficult airway rarely kills because the tube would not pass, but…

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

…it as an open fracture. The anatomy of the nail apparatus The terminology is hard to follow without a picture, and several of the steps…

…5 cm into the ear canal, not beyond the hair bearing skin. 5. Direct the jet upwards and backwards along the superior wall of the…

…a high risk of avascular necrosis of the femoral head and of vascular injury; always an orthopaedic surgeon, and usually general anaesthesia. An open dislocation…

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

…The patient sits upright on the couch, far enough forward that the head will extend beyond the end of the couch when laid down. 2…

…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…

…without anyone asking why, or the patient at risk of carbon dioxide retention is given 15 litres on a reservoir mask and drifts off into…

…is suspicion of cervical spine injury, in which scenario head tilt chin lift should only be used if other methods fail to open the airway…

…occurs within a minute after cessation of breathing (apnea), regardless of the cause. A person who is not breathing will therefore develop a cardiac arrest…

…based study. BMJ Open 2014;4:e006462. Deasy C, Bray J, Smith K, et al. Hanging associated out of hospital cardiac arrests in Melbourne, Australia…

…based study. BMJ Open 2014; 4:E006462. Deasy C, Bray J, Smith K, et al. Hanging Associated out of hospital cardiac arrests in Melbourne, Australia…

…based study. BMJ Open 2014;4:e006462. Deasy C, Bray J, Smith K, et al. Hanging associated out of hospital cardiac arrests in Melbourne, Australia…

…implies that the entire network of cells functions as one unit. If one cell in the syncytium is activated, all cells will activate downstream (provided…

…K + ) channels open which results in cell repolarization. The cycle then repeats itself ( Figure 1 ). Note that the leakage of sodium during the resting phase…

…based study. BMJ Open 2014; 4:E006462. Deasy C, Bray J, Smith K, et al. Hanging Associated out of hospital cardiac arrests in Melbourne, Australia…

…ventricular volume at the closure of the aortic valve. Upon aortic valve closure, the ventricle relaxes and pressure drops rapidly, without any significant changes in…

…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…

…Physiology and phases of diastole Diastole is divided into the following four phases (Table 1): TABLE 1 PHASE EVENT IVRT (Isovolumetric Relaxation Time) No ventricular…