…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…

…first. Procedure Choice of insertion site The left lower quadrant is the first choice : the abdominal wall is thinner there than on the right, and…

…apically, and choose the site where the rim of fluid is widest and lies most superficially, where the distance from the skin is shortest, and…

…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…

…acidic environment inactivates the anaesthetic. Place a field block in healthy skin around the abscess instead of injecting into it, and expect the procedure to…

…which is the commonest cause of recurrence. Indications Condition Procedure : : Acute paronychia with fluctuance or visible pus Incision and drainage Acute paronychia without pus formation…

…close to the upper border of the rib, never at the lower border where the neurovascular bundle lies, and the drainage is stopped for coughing…

…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…