…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…

…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…

…larynx. The difficult airway rarely kills because the tube would not pass, but because the team keeps trying to intubate instead of changing the plan…

…Pneumothorax is characterized by the presence of free air in the thoracic cavity. While this can occasionally be benign and manifest even in healthy individuals…

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

…of osteomyelitis and poor healing. Check the ankle brachial index and the foot status before any procedure on a toe. Critical ischaemia. Immunosuppression. Suspicion of…

…contact with water. A history of ear surgery in which the middle ear may be open (a mastoid cavity, mastoidectomy). An only hearing ear. Relative …

…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…

…minute or so, that are provoked by a change of position — turning over in bed, lying down, standing up, tilting the head backwards. A symptom…

…The urgency varies: Object Urgency : : Button battery Immediately — leakage of fluid causes a chemical burn Two or more magnets (including in different nostrils) Immediately — pressure…

…a reservoir mask — this markedly shortens the half life of carbon monoxide. Contact your national or regional poison control centre regarding hyperbaric treatment. Cluster headache…

…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…

…advanced cardiac life support (ACLS) can be initiated by healthcare professionals. The purpose of basic cardiopulmonary resuscitation is to keep the person alive until resources…

…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…

…classification of hyperthermia is delineated in Table 1 below. Severity Clinical presentation Treatment Mild hyperthermia Thirst. Weakness. Cold environment. Passive cooling. Cold oral fluids. Heat…

…potential, it is activated and contracts. Figure 1 illustrates the relevant components of the conduction system, the heart and the classical ECG waveforms. Figure 1 …

…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…

…to diastolic function. High compliance is desirable and means that the ventricle is capable of filling rapidly while operating at low end diastolic pressure. EDV …

…the threshold, but the threshold varies between regions. Infection of the skin over the puncture site. Marked haemodynamic instability — stabilise the patient first. CT before…

…mitral valve opens. The time interval between aortic valve closure and mitral valve opening is the isovolumetric relaxation time (IVRT) . The ability of the myocardium…