ABCDEFGHIJKLMNOPQRST
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Cushing's subtypesACTH dependent (Cushing's disease, paraneoplastic); ACTH independent (Steroids, adrenal adenoma/carcinoma); Pseudo (Alcohol, severe depression)
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Pseudo Cushing'sCortisol and ACTH both elevated, dexamethasone does not suppress; But not caused by a problem with the hypothalamic-pituitary-adrenal axis
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High altitude cerebral oedemaDevelops from altitude sickness. Potentially fatal; treat with descent and dexamethasone
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Recurrent PEsMalignancy? Often vague symptoms. Tachycardia, tachypnoea. Right heart failure if severe.
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Croup URTI; Infants and toddlers. Stridor caused by a combination of laryngeal oedema and secretions. Parainfluenza viruses account for the majority of cases
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Common drugs showing zero order kineticsAlcohol, salicylates, phenytoin, heparin
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Drugs affected by acetylator statusIsoniazid, procainamide, hydralazine, dapsone, salfasalazine. 50% of the UK population are deficient in hepatic N-acetyltransferase
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Rigler's sign AKA double wall sign. Seen on an x-ray of the abdomen when air is present on both sides of the
intestine, i.e. when there is air on both the luminal and peritoneal
side of the bowel wall
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