Dermatosis Papulosa Nigra, known as DPN, is a skin of color condition characterized by small brown or black spots around the cheekbones and eyes. Learn more. Dermatosis Papulosa Nigra, known as DPN, is a skin of color condition characterized by small brown or black spots around the cheekbones and eyes. Learn more. Find This
A simple test of glottic efficiency is Maximum Phonation Time (MPT) . MPT is the maximum time (in seconds) for which a person can sustain a vowel sound when produced on one deep breath at a relatively comfortable pitch and loudness.Like the S/Z Ratio, this is a quick and simple aerodynamic measure. Using a stopwatch, time (in seconds) how long the client can sustain the vowel. 2  Record the time as the duration of 1st âahâ . 3  Repeat Step 1 and record the time as duration of 2nd âahâ . 4  Repeat Step 1 and record the time as duration of 3rd âahâ . 5  The MPT is the longest duration âahâ of the three attempts.
In cardiology, the QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle. The QT interval represents electrical depolarization and repolarization of the ventricles.A lengthened QT interval is a marker for the potential of ventricular tachyarrhythmias like torsades de pointes and a risk factor for sudden death.T interval dispersion (QTd) is the maximum QT interval minus the minimum QT interval, and is linked with ventricular repolarization. A QTd over 80 ms is considered abnormally prolonged. Increased QTd is associated with mortality in type 2 diabetes.