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What are 3 features of a PCA stroke?
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Read moreWhat is the DDx for an elevated INR and PTT?,”Multiple factor deficiencySystemic illness (DIC, Liver dz, Vitamin K deficiency)Drugs (warfarin, high dose heparin, NOAC)Single factor deficiency (10, 5, 2
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Read moreWhere are berry aneurysms most common?,”Anterior communicating (30%), then posterior community
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Read moreWhat is the approach to thrombocytopenia?,”Pseudo: clumping (need citrate in the tubes)Production: Infiltrative (MDS, BM mets, leukemia), Infectious (V viruses, rubella, mumps), aplasia (Fanconi, aplastic anemia), Toxins (chemo, radiation, EtOH), B12/folate deficiency Destruction: ITP, alloimmune (transfusion), MAHA (DIC, TTP/HUP, HELLP, APLA), Infection (HIV, EBV, CMV)
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Read moreWhat are the 2 main risk factors for berry aneurysms?,”1. PCKD2. CT Dz (Marfan’s, Ehlers-Danlos
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Read moreWhich clotting factor and protein remain normal during liver failure?
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Read moreWhen is CT scanning most sensitive for SAH?,”Non-contrast CT most sensitive within 6 hours of symptoms if read by qualified radiologist (100% sensitivity). Goes down after 6 hours, rapidly after 12-24 hours, so 6+ hours
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Read moreHow do you reverse unfractionated heparin?
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Read moreWhat is 100% sensitive for distinguishing SAH on LP from traumatic LP (skin vessels)?,”Xanthochromia (Presence of bilirubin in LP, takes 12 hours to breakdown RBC into bilirubin).CT sensitivity decreases with time (best when <12h). Xanthochromia remains highly sensitive for 2 weeks.Best done to diagnose SAH 12 hours - 14 days after onset of symptoms
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