…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…

…is decided before the needle goes in: the choice of site, the use of ultrasound throughout the puncture, and maintaining maximal barrier precautions without shortcuts…

…complete heart block without current symptoms, alternating bundle branch block in acute anterior infarction, and before drugs or procedures with a known risk of bradycardia…

…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…

…the puncture went. Indications Unexplained cytopenia in one or more cell lines. Suspected acute leukaemia, myelodysplastic syndrome or myeloproliferative neoplasm. Work up and staging of…

…disease. Contraindications Infection of the skin or soft tissues over the puncture site — use another approach or refrain. Bacteraemia without suspicion of joint infection (relative…

…local protocol Ileus with distended bowel loops Ultrasound guidance mandatory; choose another site Scars, hernia or visible abdominal wall collaterals (caput medusae) Puncture at least…

…the puncture site. An arm with an arteriovenous fistula, previous axillary clearance or lymphoedema. A limb with paresis or marked swelling. A vein suspected of…

…skin with a small amount of lidocaine without adrenaline (epinephrine). 3. Puncture 1–2 cm proximal to the wrist crease at an angle of 30…