There are millions of arterial blood gas-related web sites on the internet; included below is an annotated list of the few sites I've reviewed, and that provide useful information. They are divided into various categories; the last category includes web sites intended for patients and family members.

SLIDE PRESENTATIONS Interpretation of Arterial Blood Gases (66 slides) I use this slide presentation in lectures to physicians and medical students. Blood Gases in Ventilated Patients Emphasis in this slide presentation is on utility of 4 basic equations in managing ventilated patients. Interpretation of Arterial Blood Gases - Powerpoint Presentation by Dr. Deopujari, India Dr. Satish Deopujari, a pediatrician and neonatal specialist, has extensive experience in teaching blood gas and electrolyte physiology throughout India. From England's Aintree Hospital Slide presentation that includes an audio component.

ACID-BASE Online Acid-Base, by J.C. Michel, M.D. This 2006 American Thoracic Society "Best of the Web" paper reviews online acid-base sites. It rates Dr. Alan Grogono's the best, with at least two others also highly recommened; see links below. Acid-base tutorial Authored by Dr. Alan Grogono, former Chairman of Anesthesiology at Tulane, this web site offers a wealth of instruction. Perhaps unique among web sites on this topic, he provides historical insight into why acid-base terminology is such a mess (see his topic "Topsy Turvy Decisions"). Anesthesiology Education website on Acid-base physiology Includes an 11-chapter text on Acid-base physiology, plus 30 case examples that are thoroughly discussed. Acid-Base Online Tutorial About this Univ. Conn. site, the ATS review paper states: "Overall, this is the most basic of all our listed websites, but the simplicity may be its actual strenght. The cases are well-presented and explained." Diagnosing mixed acid-base disorders A quick review of this important topic, with 4 important "Tips" for diagnosis. The Anion Gap and the Bicarbonate Gap AG is very important in unraveling mixed acid-base disorders. Less well understood is the bicarbonate gap.

MISCELLANEOUS Differences between PaO2, SaO2, and Oxygen Content - How Much Oxygen is in the Blood? Many trainees caring for critically ill patients don't fully understand these important differences. Blood Gas Questions With Answers A useful quiz on blood gases. Blood Gas Interpretation - What's new Deals with some non-invasive methods of assessing blood gas information. www.the-abg-site.com ABG Site "dedicated to helping nurses and other healthcare professionals learn and interpret arterial blood gases." Contains samples for you to interpret. Arterial blood gases for the surgical trainee From Royal College of Surgeons in Edinburgh. Although part of a surgical training manual, the information is just as germane to non-surgeons. Blood gas measurements Site from the UK - emphasis on actual measurements of pH, PCO2 and PO2, as opposed to interpretation of results. Brief Review from British Medical Journal In addition to information about ABG interpretation, shows pictures of arterial sampling and the Allen's Test for arterial blood flow.

BOOKS FOR SALE All You Really Need to Know to Interpret Arterial Blood Gases This is my book on the subject of arterial blood gases. Others are listed below, also available from Amazon.com. Arterial Blood Gas Analysis Made Easy Simple Guide to Blood Gas Analysis Clinical Blood Gases: Assessment and Intervention

BLOOD GAS INTERACTIVE CALCULATORS Java Acid-Base Calculator MedCalc Acid-Base Calculator Simple blood gas calculator 3 web sites, each offering a basic acid-base interpretation. The Java Calculator shows a blood gas 'map'. MedCalc is good but takes a long time to load (that site also offers other medical calculators). The last site is designed for nurses. Medcalc 3000 Anion Gap Calculator Altitude calculator Shows changes in oxygenation with changes in altitude. Oxygen content calculator Shows changes in oxygen content with changes in hemoglobin. A-a Gradient calculator

BLOOD GAS WEB SITES INTENDED FOR LAY PUBLIC (PATIENTS &/OR FAMILIES) WebMD on arterial blood gases Medline Plus Blood gas analysis Lab tests online WIKIPEDIA entries on: arterial blood gases oxygen saturation pulse oximetry

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