ECG Analysis
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This is a 10 question quiz which covers the content that we have covered in class and online this week. Please choose the best answer.
- 1.When analyzing an ECG strip, the nurse ascertains which of the following measurements are outside of normal limits?
- A.
PR Interval 0.16, QRS 0.04
- B.
PR Interval 0.30, QRS 0.06
- C.
PR Interval 0.12, QRS 0.04
- D.
PR Interval 0.18, ORS 0.06
- 2.Which of the following must be included when interpreting an ECG strip?
- A.
RT interval
- B.
PR interval
- C.
PU segment
- D.
RS segement
- 3.The nurse correlates the QRS complex to the cardiac cycle by stating, “The QRS complex represents…”
- A.
“atrial depolarization.”
- B.
"ventricular repolarization.”
- C.
“atrial repolarization.”
- D.
"ventricular depolarization.”
- 4.When analyzing an ECG, the nurse correlates movement of the waveform horizontally across ECG paper with
- A.
Amplitude.
- B.
Voltage.
- C.
Intensity.
- D.
Time.
- 5.When assessing the ECG of a client who is experiencing chest pain, the nurse observes that the ST segment is 3 millimeters below the isoelectric line. The nurse determines that this is
- A.
A result of artifact.
- B.
Suggestive of myocardial ischemia.
- C.
Not significant unless it is greater than 5mm.
- D.
An expected finding
- 6.
- A.
“I need to count the number of R waves during a six second period and multiply that number by 10.”
- B.
“I need to count the number of large boxes present and divide that number by 1500.”
- C.
“I need to select an R wave that falls on dark vertical line and number the next 6 dark vertical lines as 300, 150, 100, 75, 60, 50.”
- D.
“I need to count the number of small boxes present and divide that number by 300.”
- 7.When studying an ECG strip, the nurse observes the presence of a Q wave and determines that this waveform is
- A.
The first downward deflection following the P wave.
- B.
Only visible if pathology is present.
- C.
Considered normal if less than 0.04 sec duration and less than 25% of the amplitude of the R wave.
- D.
Both A and C.
- 8.Which of the following ECG findings require further evaluation?
- A.
PR interval of 0.14sec
- B.
PR interval of 0.18sec
- C.
QRS complex of 0.14sec
- D.
QRS complex of 0.06sec
- 9.Which of the following statements indicates the nurse is analyzing an ECG strip appropriately?
- A.
"The rate is not important as long as the R waves are spaced equally.”
- B.
“Evaluating the overall appearance of the strip is the most important aspect of analyzing ECGs.”
- C.
“As long as the measurements are correct, it is not necessary to follow any particular order.”
- D.
“It is important to analyze the ECG strip in a systematic fashion.”
- 10.Which of the following conditions put a client at risk for developing dysrhythimas? (Please select all that apply)
- A.
Chronic Obstructive Pulmonary Disease (COPD)
- B.
An SaO2 of 95%
- C.
Sick Sinus Syndrome
- D.
A serum potassium level of 4.1 mEq/L
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