Wednesday, September 19, 2007

What I Learned This Summer, Part 2

  • When treating DKA, you cannot stop treatment before the bicarbonate has been corrected (~22-24)
  • When a joint is inflamed, always feel the temperature - Warmth could be significiant of a septic joint
  • When doing arthrocentesis of the knee, find the bottom of the patella, and go medial OR lateral (Dr. A thinks lateral is better)
  • 7 Causes of Monoarticular Arthropathy
    1. Septic Joints
    2. Gonococcal Infection
    3. Gout
    4. Pseudogout
    5. Bechet's
    6. Trauma
    7. Reactive Arthropathy
  • Gout
    • no need to tap if suspected in 1st metatarsal
    • uric acid crystals found on microscopy
    • 90% due to under-excretion of uric acid
    • 10% due to over-production
      • either way, Rx is NSAIDs + steroids
      • in over-production, add allopurinol
  • Pseudogout
    • Calcium oxalate crystals
    • Tx is NSAIDs and steroids
  • Septic Joint will have >50,000 WBCs on microscopy
  • True Iron deficiency shows low iron AND low iron saturation
  • For the first 2 weeks s/p Acute CVA, allow for autoregulation of BP, except in hemorrhagic stroke
  • AIDS
    • CD4+ < 200 =" AIDS
    • CMV Retinitis
    • Toxoplasmosis
    • Esophageal Cadidia
    • TB
    • MAI Reccurent
    • Kaposi's Sarcoma
    • Cryptosporidium
    • Lymphoma
    • General wasting, CD4+ count
    • AIDS --> treat
    • CD4+ < 350 =" treat
    • CD4+ 350-500 = treat if >60,000 viral load
    • CD4 >500 = don't treat
    • If HAART works after 8 weeks, viral load should be gone
    • If viral load is still present, they are resistant to part/all of the regime
    • Geno/phenotyping to help determine what anti-virals to use
  • Most common cause of Pulmonary HTN that is not easily explained is a chronic pulmonary embolus
  • DVT's below the knee = no treatming
  • DVT's above knee = Coumadin (warfarin)
  • Recurrent DVT's = indication for continuous anticoagulation
  • Best place to look on 12-lead EKG for A-Fib are in the inferior leads - II, III, aVF