07-06-2008, 08:34 PM
anyone there?
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USMLE forum Jeoprady Game! - pepsi00
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07-06-2008, 08:49 PM
b .03
probability of independent variables ...so we multiply ....10% * 30 % gives .03
07-06-2008, 09:15 PM
its really confusing,,,I would go for Septic shock
07-06-2008, 09:45 PM
18.) hallmark for septic shock is DIC! DONT MISS IT
answer is : E The correct answer is E. Septic shock is a complex, multisystem organ failure that can be produced either by LPS (which is present in the cell wall of all gram-negative bacteria) or certain toxins released by gram-positive bacteria and fungi. LPS binds to a serum protein and stimulates CD14 receptors on endothelial cells and circulating inflammatory cells, eliciting a broad range of end-organ responses. Anaphylactic shock (choice A) is brought about by an exaggerated Type I hypersensitivity reaction mediated by IgE antibodies bound to mast cells and basophils. The resulting degranulation produces massive histamine and adenosine release, which produces constriction of the bronchi and pulmonary circulation. Cardiogenic shock (choice B) reflects the inability of the heart to maintain arterial pressure sufficiently to perfuse the systemic vasculature. Cardiogenic shock is intrinsic to the heart and usually a consequence of ischemia, arrhythmia, or obstruction. Hypovolemic shock (choice C) occurs when blood volume decreases to a point at which it is inadequate to maintain arterial pressure in the vital organs. Hypovolemic shock is due to hemorrhage, fluid loss from burns, or severe diarrhea and vomiting. Neurogenic shock (choice D) is an unusual form of shock that occurs in catastrophic nervous system injuries that cause diffuse vasodilation and hypotension.
07-06-2008, 09:46 PM
17 actually the answer me and durham had earlier given A describes MS I believe
Thks 4 that link on mg and B6 in Ca uolithiasis prophylaxis 18) the qn asks what it mimmicks and that is definately septic shock cheers
07-06-2008, 09:50 PM
19.)
45-year-old female has experienced difficulty in swallowing that has increased in severity over the past year. She has also experienced malabsorption, demonstrated by a 10-kg weight loss in the past 6 months. She reports increasing dyspnea. Echocardiography demonstrates a large pericardial effusion. Her antinuclear antibody test is posi- tive at 1:512 with a nucleolar pattern. Which of the follow- ing serious complications of her underlying autoimmune disease is most likely to occur? (A) Meningitis (B) Glomerulonephritis © Perforated duodenal ulcer (D) Adrenal failure (E) Malignant hypertension |
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