…These factors interact and vary over time. Some factors vary from second to second (e.g. degree of ischemia, parasympathetic and sympathetic tone) while others…

…dependent torsades de pointes. Standby pacing — pads applied but the device not switched on — in second degree AV block Mobitz type 2, newly discovered complete…

…3. Puncture 1–2 cm proximal to the wrist crease at an angle of 30–45 degrees , directed proximally along the course of the artery…

…the visual acuity before anything else is done. The second most important is to look for signs of perforation — Seidel's sign, an irregular pupil…

…venous cannula: Infection, burns or trauma at the puncture site. An arm with an arteriovenous fistula, previous axillary clearance or lymphoedema. A limb with paresis…

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

…dialysis catheter, not an ordinary triple lumen catheter). Measurement of central venous pressure and central venous oxygen saturation. Repeated blood sampling during intensive care. Exhausted…

…Relative Skin infection, herpes zoster or burns over the puncture site Relative Mechanical ventilation with a high PEEP (an increased risk of pneumothorax; ultrasound guidance…

…level of consciousness not attributable to hypercapnia, marked swallowing difficulty, vomiting. Haemodynamic instability or a life threatening arrhythmia. Undrained pneumothorax. Facial trauma, facial burns or…

…report. A shave biopsy of a pigmented lesion that turns out to be a melanoma can make the Breslow thickness unmeasurable and staging therefore impossible…