<prompt> The calculated oxygen concentration in the blood is 0.0025 mlml of blood. Considering an atmospheric pressure as 760mmHg, how much would be the approximate oxygen tension in the blood?40mmHg60mmHg80mmHg100mmHg  <response>: Oxygen tension in the blood PO2 can be detected using Henrys law. According to Henrys law oxygen dissolved in the blood is propoional to PaO2. Ref: Quantitative Human Physiology: An Introduction, By Joseph Feher, Page 582 ; Review of Medical Physiology, Ganong 21st Edition, Page 670. 