In the U.S. in 2014 less than 5 girls were given the name. Less than 5 boys were given the name. View the Monna Name Popularity Page to see how the popularity trend for Monna has changed since 1880, or to compare the popularity of Monna to other names. Monna is a variant spelling of Mona.n the U.S. in 2014 less than 5 girls were given the name. Less than 5 boys were given the name. View the Monna Name Popularity Page to see how the popularity trend for Monna has changed since 1880, or to compare the popularity of Monna to other names. Monna is a variant spelling of Mona.
1 2. 2. 2  The average duration of the QRS complex in 100 normal adults was 0.0777 second. 3  Fifty of the patients were males with an average duration of the QRS time interval of 0.0833 second, and 50 were females with a shorter time interval of 0.0722 second.
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.