…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…

…Otherwise: Type Contraindication : : Absolute No safe pocket of fluid to puncture (no ultrasound verified fluid) Relative Uncorrected coagulopathy or thrombocytopenia Relative Ongoing anticoagulant treatment — plan…

…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…

…sample. Indications Diagnostic paracentesis: Newly detected ascites — always. Every admission of a patient with known ascites. Clinical deterioration in a cirrhotic patient with ascites: fever…

…jugular vein are the vessels that can most often still be punctured — and ultrasound makes the deep forearm veins accessible to those who are experienced…

…a small amount of lidocaine without adrenaline (epinephrine). 3. Puncture 1–2 cm proximal to the wrist crease at an angle of 30–45 degrees…