Pump Up the Volume (1990) Teenage angst finds a new voice in this drama. By day, Mark Hunter (Christian Slater) is a quiet, studious student at an ordinary suburban high school in Arizona.
In contrast, fractional flow reserve (FFR) is a physiologic measure of coronary stenosis expressing the amount of coronary flow still attainable despite the presence of a stenosis, but it requires an invasive procedure. Also, fractional flow reserve (FFR) can detect pressure decrease at the bridge distally.
Peak expiratory flow rate (PEFR) is the maximum flow rate generated during a forceful exhalation, starting from full lung inflation. Peak flow rate primarily reflects large airway flow and depends on the voluntary effort and muscular strength of the patient. Maximal airflow occurs during the effort-dependent portion of the expiratory maneuver, so low values may be caused by a less than maximal effort rather than by airway obstruction.