Apnea		Breathing deeply and comfortably only when sitting
Bradypnea		Difficult, labored, or painful breathing
Cheyne-Strokes respiration		Sitting up and leaning over a table to breathe
Dyspnea		Lack or absence of breathing
Hyperventilation		Very deep and rapid respirations
Hypoventilation		Respirations gradually increases in rate and depth and then become shallow and slow; breathing may stop for 10 to 20 seconds
Hypoxia		Rapid breathing; respirations are more than 20 per minute
Kussmaul respirations		Respirations are slow, shallow, and sometimes irregular
Orthopnea		Respirations are rapid and deeper than normal
Orthopneic position		Slow breathing respirations are fewer than 12 per minute
Tachypnea		Cells do not have enough oxygen