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  1. sahell

    Step II NBME Surgery Form 1 questions

    1. Preop evaluation reveals chronic occlusion of lower limb veins and edema - How to manage preop? I thought we would give therapeutic dose of Hep for DVT, which was wrong. Would be give low dose hep prophylaxis? 2. Patient is put on a ventillator probably because of ARDS - Tidal vol 1000ml...
    • sahell
    • Thread
    • ards cms dvt heparin mechanical ventillation nbme peep shelf surgery
    • Replies: 1
    • Forum: USMLE and COMLEX
  2. HereWeGo21

    Step I Heparin-induced thrombocytopenia mechanism

    As I understand it: Heparin binds Platelet factor 4 (PF4) Heparin-PF4 complex is immunogenic, and causes IgG directed against it Heparin-PF4-IgG complex binds platelets via their Fc receptors. This causes activation of the platelets Platelet activation and thrombosis. However, this seems...
  3. EmetyreUSMLEStep1Tutor1

    Step I HIT

    Guys, can anyone please explain me why in heparin induced thrombocytopenia thrombosis occurs?