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The ECG leads: Electrodes, limb leads, chest (precordial) leads and the 12-Lead ECG

…On the other hand, for the purpose of diagnosing morphological changes (e.g. myocardial ischemia, ventricular hypertrophy), the ability to do so increases as the…

Central venous catheter

…probe cover and sterile gel. Chlorhexidine in alcohol 5 mg/mL for skin disinfection. Allow it to air dry completely before puncture. Maximal barrier precautions:…

Standard Transthoracic Echocardiogram: Complete Imaging Protocol

…transducer moves across the patient’s skin to a new position. Rock : Within the same imaging plane, the transducer changes orientation either toward or away…

Bone marrow aspiration and biopsy

…4. Make a small skin incision with the scalpel. 5. Aspiration: advance the needle with the stylet in place perpendicular to the bone surface, angled…

Cryotherapy of skin lesions

…a shielding cone. 5. Hold the spray nozzle 1–2 cm from the skin , perpendicular to the surface. 6. Spray intermittently until the ice front…

🟠 Aspirin (Acetylsalicylic acid)

…acetylsalicylic acid at the first sign of skin rash, mucosal lesions, or hypersensitivity. Interactions Pharmacodynamic interactions Anticoagulants, thrombolytics, or other platelet aggregation inhibitors: Salicylates inhibit…

Anthropometric measurements

…expiration, with the tape horizontal and without compressing the skin. Ratios and other measurements Measurement Calculation Threshold : : : Waist–hip ratio Waist / hip Men 0.90…

Soft tissue corticosteroid injection

…a sufficient effect. Contraindications Absolute: Cellulitis, a skin wound or other infection over the injection site. Bacteraemia or suspected septic bursitis or arthritis. A joint…

Abscess incision and drainage

…anaesthetic. Place a field block in healthy skin around the abscess instead of injecting into it, and expect the procedure to hurt even so. Offer…

Empirical antibiotic therapy: quick reference for common infections

…A positive urine dipstick in an older patient is difficult to interpret. Skin and soft tissue Diagnosis Agent Dose Duration : : : : Erysipelas phenoxymethylpenicillin 1 g × 3…

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