Which view requires the body to be positioned at an angle?

What does the PH2O equal in alveolar gas if the FIO2 is 0.21?

a. 573 mm Hg c. 40 mm Hg b. 47 mm Hg d. 100 mm Hg

Lack of ovulation is one cause of female ________. 

Fill in the blank(s) with the appropriate word(s).