If the PCO2 of an arterial blood sample is 60 mm Hg, the expected pH is:
a. 7.20. c. 7.50.
b. 7.30. d. 7.60.
ANS: A
The pH changes by 0.1 unit for every 10-mm Hg increase in PCO2. Therefore, a PCO2 of 60 mm Hg is 20 mm Hg higher than normal, which equates to 2 ? 0.1 = 0.2 decrease in pH from normal, or 7.40 – 0.2 = 7.20.
Health Professions
You might also like to view...
What substances in segmented neutrophils are important for intracellular killing of bacteria?
a. Alkaline phosphatase and halides b. Myeloperoxidase and superoxide c. Collagenase and hydrogen peroxide d. Acid phosphatase and anions
Health Professions
The PetCO2 may be used to estimate the arterial PCO2 (PaCO2).
Answer the following statement true (T) or false (F)
Health Professions