Answer:
True. Hypoxemia is indeed a deficiency of oxygen in body tissues. It occurs when there is a lower-than-normal level of oxygen in the blood. This can be caused by various conditions such as lung diseases, heart problems, or high altitudes where there is reduced oxygen availability. Hypoxemia can lead to symptoms like shortness of breath, rapid breathing, confusion, cyanosis (bluish discoloration of the skin), and can potentially be life-threatening if severe or left untreated.