…of the most useful signs Low voltage on the ECG, electrical alternans Supportive; it does not exclude Diastolic collapse of the right atrium and right…

…is because it does not ensure complete drainage of the pericardium, and needles or catheters are at risk of bending or damage during chest compressions…

…of the opening pressure in suspected idiopathic intracranial hypertension. Therapeutic drainage in idiopathic intracranial hypertension and in assessment before shunt surgery. Contraindications Clinical signs of…

…iliac spine and lateral to the lateral border of the rectus abdominis — this avoids the inferior epigastric artery, which runs on the posterior aspect of…

…lip) Venous drainage towards the cavernous sinus Surgeon or ENT; often antibiotics Palm, fingers, tendon sheaths Deep compartments and tendon sheaths, loss of function Orthopaedic…

…or the cut off finger of a sterile glove rolled down. A nail splitter or strong pointed scissors, a Freer elevator or small artery forceps…

…safe triangle (Figure 1). Outside it the risk of injuring the diaphragm, liver, spleen or internal thoracic artery increases. For diagnostic aspiration the point chosen…

…a needle due to reduced risk of injury. Thoracostomy should be performed promptly following needle decompression. Thoracostomy with drainage typically serves as a stabilizing intervention…

…equipment A laryngeal mask of the correct size plus one size above and one below. Second generation masks with a separate drainage channel (i gel…

…impairment or a large residual volume. A need for accurate measurement of urine output in a critically ill patient. Perioperatively and postoperatively in longer procedures…