…Practice differs between regions and departments; a palpable ulnar pulse and a warm, well perfused hand carry more weight. Choice of vessel The radial artery…

…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…

…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…

…Infection or burns over the puncture site. Osteogenesis imperfecta and severe osteoporosis (relative). An inability to identify the landmarks. Choice of vein and cannula size…

…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…

…to make sure that never happens, and to make sure the catheter does not become the patient's next focus of infection. Indications Infusion of…

…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…

…Undrained pneumothorax. Facial trauma, facial burns or recent facial surgery that make a seal impossible. Recent surgery on the oesophagus or upper gastrointestinal tract, ileus…

…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…