With AECG professionals have more tolerant of electrophysiological and other phenomena in the circulatory system. Thus, the heart rate due to physiological norms AECG became much more widely, and many electrophysiological phenomena are perceived to it as a manifestation of pathology today are common findings in healthy people and acquire clinical significance when it comes to compromised heart.
Therefore set out below normal AECG have sens exclusively in the Annex to the heart of a healthy person.
Physiological norms AECG
The lower boundary of heart rate (beats / min), most often during sleep
newborn - 70
children under 1 year - 65
Children under 11 years - 45
adolescents up to 16 years - 40
persons over 18 years old - 35
The upper limit of heart rate (beats / min)
newborns - 220
children up to 11 years - 200
adolescents under the age of 16 - 190
persons over 18 years - 220 - the number of years
ST-segment elevation
to1 mms 10 years of age
more than 1 mm of less than 1 minute
Wide fluctuations in the amplitude of the T wave in the positive range
Short periods of change in the amplitude of the P wave
Pause (most often during REM sleep) for up to
1000 ms in newborns
1750 ms in adults
the second criterion - do not exceed twice the previous RR-interval
QT interval regardless of heart rate to
400 ms to 1 year
430 ms up to 3 years
480 ms to 15 years
500 ms over 15 years
Fly-out rhythms
supraventricular
nodal
Beats
supraventricular single
supraventricular group of adults
Single ventricular to 60 years
paired ventricular over 60 years
Paroxysmal tachycardia in adults
supraventricular
Ventricular
Atrial fibrillation
Physiology 4 Videos for the USMLE Step 1
This USMLE Step 1 Review free video covers the subject of Physiology about Hemodynamics 3 3. This free USMLE video review for the USMLE Step 1 is derived from the Gold Standard USMLE Step 1 audio review. You can find the complete Gold Standard USMLE Step 1 Audio review at http://www.apolloaudiobooks.com/page..... We hope our YouTube channel helps you with USMLE Step 1 success!
