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.
Amplitude of normal P wave does not exceed this amount in any lead. 0.25 mV. (2.5 mm or 2 1/2 small squares high). Duration of normal PR interval. 0.12 to 0.2 seconds. (3 to 5 mm). The amplitude of a normal Q wave does not exceed this amount.0.1 mV. Duration of a normal QRS interval in seconds. seconds. Duration of a normal QRS interval as measured in small squares. 1.5 to 2.5 small squares. At a glance, the width of a normal QRS interval in relation to a large square. approx.