Author Question: Complete the following ECG criteria for a sinus arrhythmia: Rhythm ... (Read 241 times)

storky111 · **on:** Jun 25, 2018

Complete the following ECG criteria for a sinus arrhythmia:

Rhythm ___________________ ___________________ __
Rate ___________________ ___________________ __
P waves ___________________ ___________________ __
PR interval ___________________ ___________________ __
QRS duration ___________________ ___________________ __

Fill in the blanks with correct word

Question 2

Complete the following ECG criteria for a sinus arrest:

Rhythm ___________________ ___________________ __
Rate ___________________ ___________________ __
P waves ___________________ ___________________ __
PR interval ___________________ ___________________ __
QRS duration ___________________ ___________________ __

Fill in the blanks with correct word

dpost18 · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

Rhythm Irregular, phasic with breathing; heart rate increases gradually during inspiration (R-R intervals shorten) and decreases with expiration (R-R intervals lengthen).
Rate Usually 60-100 beats/min, but may be slower or faster.
P waves Positive (upright) in lead II, one precedes each QRS complex, P waves look alike.
PR interval 0.12 to 0.20 seconds and constant from beat to beat.
QRS duration 0.11 seconds or less unless abnormally conducted.

Answer to Question 2

Rhythm Irregularthe pause is of undetermined length (more than one PQRST complex is missing) and is not the same distance as other P-P intervals.
Rate Usually normal, but varies because of the pause.
P waves Positive (upright) in lead II, P waves look alike; when present, one precedes each QRS complex.
PR interval 0.12 to 0.20 seconds and constant from beat to beat.
QRS duration 0.11 seconds or less unless abnormally conducted.