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diagnosis ebm clinical ocular physicalexam video differential management criticalcare hematology pathophysiology causes coagulation fundoscopy pocus ultrasound posterior slitlamp algorithm anterior
Disseminated Intravascular Coagulation (DIC) Overview Increased Clotting and Consumption of Clotting Factors Findings: • Bleeding • Recent history
Intravascular Coagulation (DIC ... • Prolonged PT/PTT ... Manifestations of DIC ... PT/INR: ↑ • PTT ... INR < 2.3 - APTT
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT) Prothrombin Time (PT) - Often Elevated in: • Vitamin
Thromboplastin Time (PTT ... Thromboplastin Time (PTT ... elevated in: • DIC ... thematttsai #PT #PTT
Causes of Abnormal PT and/or aPTT Prolonged Prothrombin Time (PT) 1. Acquired deficiency of FVII
Abnormal PT and/or aPTT ... typically prolong aPTT ... may prolong the aPTT ... Prolonged PT and aPTT ... intravascular coagulation (DIC
Differential Diagnosis for a Prolonged PT and aPTT If the PT and the aPTT are both prolonged,
Prolonged PT and aPTT ... the PT and the aPTT ... intravascularcoagulation (DIC ... #Abnormal #PT #aPTT
ISTH Scoring System for Disseminated Intravascular Coagulation (DIC) Platelet count: • Expected: Low (or normal) • Elevation
Intravascular Coagulation (DIC ... aggregation PT, aPTT ... small vessels #DIC
Papilledema vs Normal Optic Disc Blurred vs sharp optic disc margins #Papilledema #OpticDisc #Normal #Comparison #Fundoscopy #Ophthalmology #Clinical
vs Normal Optic Disc ... vs sharp optic disc ... Comparison #Fundoscopy #Ophthalmology
Classic signs of arteritic anterior ischemic optic neuropathy or giant cell arteritis are mild arterial narrowing
and chalky white disc ... Korean Journal of Ophthalmology ... arteritis #photo #disc ... #nerve #Ophthalmology
Therefore, studies obtained at the initial presentation in the emergency department should evaluate for fibrinolysis with
thromboplastin time (PTT ... decompensated DIC ... Diagnosis #Honc #DIC
Pathological Optic Disc Cupping Note cup-to-disc ratio at least 0.8 (physiologic limit of 0.5). Thinning of optic disc
Pathological Optic Disc ... Note cup-to-disc ... Thinning of optic disc ... so that optic disc ... Cupping #fundoscopy #ophthalmology
Optic Disc Edema The optic disc is elevated and its surface is covered by cotton wool spots
Optic Disc Edema ... The optic disc ... papilledema #fundoscopy #ophthalmology
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