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Showing posts from May, 2020

MCQ Series 8

351. Causes of  Apple core sign femur synovial chondromatosis (Most common) pigmented villonodular synovitis amyloidosis rheumatoid arthritis 352.  Anterior tibial translation/translocation  > 7mm is highly suggestive of Anterior cruciate ligament tear. 353.  Laryngo-tracheo bronchitis  or croup is the commonest cause of tracheal narrowing. 354. Most common primary malignant tumor of parotid gland -  Mucoepidermoid carcinoma . 355. Type 3 accessory navicular bone - is called a  cornuate navicular . 356.  Myoinositol  concentrations in brain are abnormally increased in patients with demyelinating disease and alzheimer's. Detected by MR spectriscopy. 357.  Morel Lavalle lesion  - degloving injury in severe trauma resulting in abrupt separation of the skin and subcutaneous fatty tissue from the underlying fascia. 358. Overproduction of protein and lipid rich material from Type II pneumocytes which is not cleared by lungs - lead...

Lignocaine

Lignocaine LIGNOCAINE  Dose of lignocaine for spinal anesthesia is 5% Maximum safe dose of lignocaine with adrenaline is 7 mg/kg wt Maximum safe dose of lignocaine for spinal anesthesia is 25-100 mg Concentration of lignocaine is used in epidural anaesthesia is 2% Maximum dose of lignocaine which can be given with adrenaline for ocular blocks is 7mg/kg Local anaesthetics acts by blocking nerve conduction. Small fibers and non myelinated fibers are blocked more easily than large myelinated fibers. Lignocaine is used as anesthetic and class IB antiarrhythmic in 2% jelly, 4% injection form 2-10% is the concentration of lignocaine used for topical anaesthesia High first pass metabolism is seen in Lignocaine Lignocaine is used in Ventricular tachycardia Best used in digoxin induced arrhythmia Lignocaine Drug of choice in lignocaine toxicity is Diazepam Lignocaine can be used in Ventricular fibrillation, Spinal anaesthesia ...