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#1
10-31-2011
 USMLE Forums Master Steps History: Not yet Posts: 674 Threads: 264 Thanked 1,003 Times in 405 Posts Reputation: 1013
Calculate the O2 of the blood?

Calculate the oxygen content for a patient with a pulse oximetry reading of 98%, hemoglobin of 10 g/dL, and an arterial blood gas showing pH 7.42, PaO2 93 mmHG, and PaCO2 35 mmHG.
A. 17
B. 15
C. 13.13
D. 17.17
E. 15.15
 The above post was thanked by: Faith32 (11-01-2011)

#2
11-01-2011
 USMLE Forums Master Steps History: Not yet Posts: 674 Threads: 264 Thanked 1,003 Times in 405 Posts Reputation: 1013

Oxygen content = (1.34Hb x Sa02) + 0.003Pa02. = (1.34 x 10 x 0.98 ) + (small insignificant number)
= 13.13
 The above post was thanked by: Faith32 (11-01-2011)

 Tags Hematology-, Physiology-, Step-1-Questions

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