It is a dollar in the sense that the value of the note is stated in units of one dollar. The statutory authority for the creation and issuance of Federal Reserve notes is provided by Â§ 16 of the Federal Reserve Act (see 12 O.S.C. S 411).
Related to QRS interval: QT interval. the duration of the QRS complex in the electrocardiogram. In the electrocardiogram, the interval that denotes depolarization of the ventricles, between the beginning of the Q wave and the end of the S wave. Its normal duration is 120â200 msec. Shorter durations are found, e.g., in preexcitation. Longer durations are indicative of first-degree heart block.
To meet criteria for LGL, the 12-lead ECG taken during a period of normal sinus rhythm must demonstrate a PR interval less than or equal to 0.12 second and a normal QRS upstroke and duration, as in the image below. ECG demonstrating a short PR interval of approximately 100 ms and normal QRS. One of the most useful diagnostic tools is a 12-lead ECG recorded during a paroxysm of tachycardia.