Friday, May 4, 2012

Lecture: Acid Base Disorders (Sorry, no ECGs!) -- 50 minutes


  1. jeez, Stephen. it was difficult for me in 1979, and still is.
    but thank you so much. excellent video.

  2. Dr. Smith, This lecture was extremely helpful for a medical student such as me. Thank you for the hard work.

  3. In case of acute on chronic respiratory acidosis, how will the ABG differ from that of chronic hypercapneia?
    Thanks in advance.


    1. pCO2 will be elevated out of proportion to HCO3. pH will be lower than simple chronic resp acidosis.

  4. Alexander ErmakovApril 25, 2019 at 3:15 PM

    Dear Dr Smith, thank you veru much for great presentation. Question: for the situation on 32-33 min with 65 y.o. veteran with COPD how we know that this is elevation of pCO2 out of proportion to HCO3 and not other way round (HCO3 lower than expected and thus metabolic acidosis)? and how we assess that pH is lower than in simple respiratory acidosis? Thank you very much.

    1. Alexander,
      most serious acidoses have an increased anion gap. A chronic respiratory acidosis does not. So you would be able to tell this both by the clinical presentation (resp failure) and absence of large anion gap.
      Thanks for the great question.
      Steve Smith


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