User:Bron766/Arterial and venous blood gas/tutorial 1

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Tutorial 1: Interpret the acid-base results of an Arterial Blood Gas.

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This is a set of exercises for practising skills related to Arterial Blood Gas (ABG) acid-base interpretation. You can work through all of the exercises or jump to whichever one you like. The first 4 steps cover the basics of ABG acid-base interpretation. There are a number of more detailed interpretation steps hidden at the bottom of the page when you're ready for them.

Note: when you submit a quiz, the page will re-load and depending on what browser you are using you may have to find and re-open the quiz to see the answers. This isn't an issue for old versions of Internet Explorer because they open all of the quizzes anyway, which does make for lots of scrolling. If you know how to make this style of page more compatible across multiple and old browsers, please have a go at editing this page or leave a comment on the Talk page.

Step 1: Is the ABG normal or abnormal?

Step 2: Is the problem acidemia or alkalemia? Step 3: Is the primary problem respiratory or metabolic?

Step 4: Is it compensated or uncompensated?

Match the ABG results to the clinical situation 

Mixed acid-base disorders:
 * Describe approximate guidelines for the expected change in pH with high pCO2
 * Describe approximate guidelines for the expected change in pH with change in [HCO3-]
 * Describe approximate guidelines for the expected change in pCO2 with low [HCO3-]
 * Interpret base excess results
 * Calculate the percent difference ratio
 * Use Winter's formula
 * Calculate the delta ratio
 * Calculate the corrected bicarbonate
 * Calculate the strong Ion difference or stewart approach

http://www.youtube.com/watch?v=5wW2RYGUDV4 alternative method