# ECG Analysis

10 Questions | Total Attempts: 1301  Settings  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.
Which of the following statements indicates that the student nurse understands the sequence method of measuring ECGs?
• 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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