Chronic hypoxemia stimulates red blood cell production by the bone marrow, leading to an excess of red cells. Hypoxemia caused by decreased oxygen pressure in the blood or too little oxygen intake improves with oxygen therapy. Hypoxemia resulting from shunting of blood from the right side of the heart to theleft side of the heart without exchange of gases in the lungs is treated with bronchial hygiene and breathing therapy. Or a lapse from wakefulness into sleep that lasts just a few seconds, typically experienced by sleep-deprived persons. Subjects are allowed a fixed number of opportunities to fall asleep during their customary awake period.
Long latencies are helpful in distinguishing physical tiredness or fatigue from true sleepiness.
Or measures how sleepy you are by observing how long it takes you to fall asleep. Or apnea caused by blockage of the airway. 2, cessation of breathing during sleep, due to a mechanical obstruction, such as a semi-collapsed trachea, tongue relaxed to back of the throat, or a large amoung of tissue in the uvula area. Chemical symbol for oxygen. People normally sleep in patterns that follow four definite, gradual stages.