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Review of Clinical Signs Review Questions

Answer 2
  1. Arteriolar narrowing. The classification system for hypertensive retinopathy consists of 4 grades as follows:
       • Grade I: mild narrowing of the retinal arterioles
       • Grade II: arteriovenous nicking (ie, venous compression
           at arteriovenous crossings)
       • Grade III: cotton-wool spots, hemorrhages, retinal edema
       • Grade IV: optic disc edema
    Grades 1 and 2 are considered nonmalignant hypertension whereas grades 3 and 4 are considered malignant.

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