BSMH Advanced Arrhythmia Actual Exam
Questions And Answers Practice Questions with
Solutions Newest 2026-2027 | Already Graded A+
what is bundle branch block?
obstruction in one of the branches of the bundle of his so the
QRS is wider and more than 0.12 seconds
nurse actions for a bundle branch block
place patient on oxygen, call the physician, call rapid response if
needed, obtain an EKG to determine if left or right
QRS characteristics
composed of 3 waveforms, measures 0.06-0.12 seconds, positive
deflection in lead 2
,2|Page
Q wave
1st negative deflection after the P; may not be seen in real time
R wave
1st positive deflection after the P
S wave
negative deflection after the R
what does the T wave show?
repolarization of ventricles
T wave characteristics
follows the QRS and ST segment, should be 5 mm or less in
lead 2, usually smooth and rounded, follows direction of R
,3|Page
QT interval
time required for ventricular repolarization and depolarization;
0.36-0.44 seconds
U wave
repolarization of the purkinje fibers
ST segment
interval between the end of ventricular depolarization and
beginning of repolarization; should be on isoelectric line
what does it mean if the ST segment is elevated?
myocardial injury or death
what does it mean if the ST segment is depressed?
, 4|Page
myocardial ischemia
normal sinus rhythm rate
60-100
normal sinus rhythm rhythm
regular
normal sinus rhythm p waves
normal (upright and uniform)
normal sinus rhythm PR interval
normal (0.12-0.20 sec)
normal sinus rhythm QRS