…because of the cosmesis, often with antibiotic prophylaxis. Deep puncture wounds , where the base cannot be inspected or irrigated clean. Wounds with retained foreign material…

…after arterial puncture, technically more difficult with ultrasound Femoral vein Fastest, and does not interfere with ongoing CPR or airway management, no risk of pneumothorax…

…puncture site, known thrombosis in the target vein. With a mechanical tricuspid prosthesis the lead must not be passed through the valve. The order of…

…bacterial CNS infections states that CT must not be performed before lumbar puncture in suspected bacterial meningitis — not even with a reduced level of consciousness…

…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…

…technique but the handling of the specimen — an aspirate that clots before the smears are made is unusable, no matter how well the puncture went…

…skin. 2. Clean and let it dry. Do not palpate the puncture site again with an unsterile hand. 3. Insert the needle in one movement…

…choose a new site if in doubt Cellulitis over the insertion site Change the puncture site Preparation and equipment Ultrasound with a curved array probe…

…1. Apply the tourniquet 10–15 cm proximal to the intended puncture site, let the arm hang, ask the patient to pump with the hand…

…the hand secured with tape. Greater extension makes the artery harder to palpate. Procedure Catheter over needle (direct technique) 1. Palpate the course of the…