KP RHYTHM INTERPRETATION
ASSESSMENT CERTIFICATION SCRIPT 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◍ A client with a prolonged QT interval is at highest risk for which
life-threatening cardiac rhythm?.
Answer: Ventricular fibrillation
◍ Place the steps for interpreting an electrocardiogram (ECG) strip in the
correct order, from first to last..
Answer: Identify and examine the P waveMeasure the PR interval Measure
the QRS complexIdentify the rhythm as regular or irregular Determine the
heart rate Interpret the strip based on the collected data
◍ The T Wave =.
Answer: Produced by ventricular repolarization or relaxation
◍ Which term best describes the PR interval on this tracing?.
Answer: Unmeasurable
◍ STEP 4: The PR Interval - normal?.
Answer: Normal interval is 0.12-0.20 seconds (3-5 small squares)
◍ R wave =.
Answer: First upward or positive deflection following the P wave (tallest
waveform)
◍ P Wave: Five Questions to Ask.
Answer: •Step 1: Are P waves present?•Step 2: Are P waves occurring
regularly?•Step 3: Is there one P wave present for each QRS complex
present and/or is there a QRS for each P wave present?•Step 4: Are the P
waves smooth, rounded,and upright in appearance, or are they
, inverted?•Step 5: Do all P waves look similar?
◍ Identify the correct intervals for this cardiac cycle from the choices given..
Answer: 1. PR interval2. QT interval 3. QRS interval
◍ What rhythm is this?.
Answer: Ventricular Tachycardia
◍ STEP 2: Heart Rhythm - Regularly irregular =.
Answer: Irregular rhythms that occur in a pattern
◍ Begins with the end of the QRS complex and ends with the onset of the T
wave (consistent with isoelectric line).
Answer: The ST Segment
◍ Step 1: Heart Rate - bradycardia =.
Answer: Heart rate less than 60 BPM
◍ Measures the time interval from the onset of atrial contraction to onset of
ventricular contraction.
Answer: the PR interval
◍ How should the nurse document the client's cardiac rhythm?.
Answer: Pulseless electrical activity
◍ STEP 2: Heart Rhythm - occasionally irregular =.
Answer: Intervals of only one or two R to R are uneven
◍ S wave =.
Answer: The sharp, negative, or downward deflection that follows the R
wave
◍ Step 1: Heart Rate - atrial rate =.
Answer: Counting the number of P waves noted
◍ The U Wave: appearance on the EKG strip? (2).
Answer: •Typically follows the T wave•Appears much smaller than T wave,
rounded, upright, or positive deflection if they are present
◍ In the QRS complex shown here, the PR interval is ____________ ms, the
ASSESSMENT CERTIFICATION SCRIPT 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◍ A client with a prolonged QT interval is at highest risk for which
life-threatening cardiac rhythm?.
Answer: Ventricular fibrillation
◍ Place the steps for interpreting an electrocardiogram (ECG) strip in the
correct order, from first to last..
Answer: Identify and examine the P waveMeasure the PR interval Measure
the QRS complexIdentify the rhythm as regular or irregular Determine the
heart rate Interpret the strip based on the collected data
◍ The T Wave =.
Answer: Produced by ventricular repolarization or relaxation
◍ Which term best describes the PR interval on this tracing?.
Answer: Unmeasurable
◍ STEP 4: The PR Interval - normal?.
Answer: Normal interval is 0.12-0.20 seconds (3-5 small squares)
◍ R wave =.
Answer: First upward or positive deflection following the P wave (tallest
waveform)
◍ P Wave: Five Questions to Ask.
Answer: •Step 1: Are P waves present?•Step 2: Are P waves occurring
regularly?•Step 3: Is there one P wave present for each QRS complex
present and/or is there a QRS for each P wave present?•Step 4: Are the P
waves smooth, rounded,and upright in appearance, or are they
, inverted?•Step 5: Do all P waves look similar?
◍ Identify the correct intervals for this cardiac cycle from the choices given..
Answer: 1. PR interval2. QT interval 3. QRS interval
◍ What rhythm is this?.
Answer: Ventricular Tachycardia
◍ STEP 2: Heart Rhythm - Regularly irregular =.
Answer: Irregular rhythms that occur in a pattern
◍ Begins with the end of the QRS complex and ends with the onset of the T
wave (consistent with isoelectric line).
Answer: The ST Segment
◍ Step 1: Heart Rate - bradycardia =.
Answer: Heart rate less than 60 BPM
◍ Measures the time interval from the onset of atrial contraction to onset of
ventricular contraction.
Answer: the PR interval
◍ How should the nurse document the client's cardiac rhythm?.
Answer: Pulseless electrical activity
◍ STEP 2: Heart Rhythm - occasionally irregular =.
Answer: Intervals of only one or two R to R are uneven
◍ S wave =.
Answer: The sharp, negative, or downward deflection that follows the R
wave
◍ Step 1: Heart Rate - atrial rate =.
Answer: Counting the number of P waves noted
◍ The U Wave: appearance on the EKG strip? (2).
Answer: •Typically follows the T wave•Appears much smaller than T wave,
rounded, upright, or positive deflection if they are present
◍ In the QRS complex shown here, the PR interval is ____________ ms, the
