<prompt> Flapping Tremors may be associated with all of the following, ExceptHepatic encephalopathyUremiaCO2 NarcosisThyrotoxicosis  <response>: Answer is D Thyrotoxicosis Thyrotoxicosis Hypehyroidism is associated with rapid fine tremors and not flapping tremors irregular coarse tremor also called Asterixis. Asterexis Flapping tremor is most commonly seen in metabolic encephalopathies due to hepatic, renal uremia and respiratory failure CO2 Nercosis. Causes of Asterixis Flapping Tremor Coarse irregular tremor Typical Metabolic Encephalopathies Hepatic Encephalopathy Typically Metabolic Encephalopathies due to Uremic Encephalopathy hepatic, renal and respiratory failure are the Respiratory failure with CO2 Retention CO2 Narcosis most common causes. Other Metabolic Encephalopathies Hyperglycemia Hypoglycemia Electrolyte Disturbances Hypokalemia, Hypomagnesemia etc Medication side Effects Intrications Bromide intoxication Gabapentin Pregabalin Phenytoin intoxication Valproate Carbamazapine Clozapine Chloral Hydrate intoxication Lithium Levodopa Glutathemide intoxication Metrizamide Ifbsfamide Intravenous ammonium chloride Gastrointestinal Disease Whipples Disease Malbsorption syndrome Idiopathic Steatorrhea Toxic Megacolon of Ulcerative Colitis Structural lesions Vascular Infarction Haemorrhage brainstem intraventruculer Subdural Empyema hematoma Encephalitis Post-anoxic action myoclonus Brain tumors Post -surgical scars Miscellaneous Congestive Cardiac Failure Chronic Dialysis Septisemia 