It is SaO2 that measures oxygen saturation of hemoglobin, and it should be clear that it depends on the partial pressure of arterial oxygen. If PaO2 drops, there's less dissolved oxygen, and therefore less saturation of hemoglobin with oxygen.
The Cuban Missile Crisis was a propaganda victory for the United States and an undisclosed blow to containment. Some may contend that since the Soviet Union ultimately fell, the policy of containment was successful. This is an overly generous statement.
The Monroe Doctrine was beneficial because it kept European  countries from continuing to colonize the U.S. after 1823. This  established foreign policy for the U.S. It helpâ¦ed pave the way for  continued expansion from the East coast to the West coast without  interference of European powers.