Physiology – MCQ 89 – Acid base calculation

Collection of Medicine MCQs (Cardiovascular system) for medical students. Concept based MCQs with detailed explanations which help students to gain valuable insights and gain an edge in competitive examinations. More than just answering MCQs, the explanations will improve the knowledge and understanding about the conditions discussed. Also useful for MD students who are preparing for Superspeciality entrance examinations. Medicine MCQs - Cardiovascular System Kindle Edition: Click Here for a Preview. Comments and suggestions are most welcome.

A newly posted junior doctor had difficulty in finding out base deficit/excess for blood in a given patient. An experienced senior resident advised a quick method to determine acid base composition of blood based on PCO2. Which of the following is the likely method he suggested to predict acid base composition of blood?
A. Red ford nonuogram
B. DuBio’s normogram
C. Goldman constant Field equation
D. Siggard Andersen normogram

Correct answer : D. Siggard Andersen normogram

Siggard Andersen normogram helps to predict the acid base status of blood. PCO2 is plotted in the Y axis and pH in the X axis.

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