EKG/Module 5 Review

Which of the following are the most common causes of patient related artifacts on an EKG tracing? Select all that apply.

• Movement

• Mechanical factors

• Substances on the skin

• Electrical Factors

When calibrating an EKG machine, which of the following should the assistant identify as the standard speed of recording?

• 25 mm/second

• 50 mm/second

• 10 mm/second

• 5 mm/second

In which location should the V4 lead be placed?

• 5th intercostal space at the anterior axillary line

• 5th intercostal space at the midaxillary line

• Midway between V3 and V5

• 5th intercostal space at the midclavicular line

When performing an EKG, you notice a wandering baseline throughout the tracing. What issue could have resulted in this occurrence?

• The electrode pads were defective or poorly attached

• The machine was missing the grounding prong for the outlet

• The machine didn't note have the proper standardization settings set

• The cable tips were loose or had become separated

Identify the artifact that is seen on the EKG tracing. Hint: it is caused by muscle movement such as shivering.

• AC interference

• Wandering baseline

• Somatic Tremor

• Interrupted baseline

What does the P wave represent?

• atrial depolarization

• ventricle depolarization

• ventricle repolarization

• atrial repolarization

A PCT is monitoring a pt who goes into asystole. Which of the following actions should the technician take first?

• Initiate CPR.

• Perform a 12-lead EKG.

• Use an automatic external defibrillator (AED).

• Measure vital signs.

A PCT is performing a right-sided 12-lead EKG. For which of the following conditions will a provider request a right-sided EKG?

• Atrial fibrillation

• Myocardial infarction

• Tachycardia

• Dextrocardia

Which of the parts of the EKG waveform is the point where ventricular depolarization stops and ventricular repolarization starts?

• P wave

• J point

• QRS complex

Look at the 6 second strip and determine which rhythm is pictured.

Hint: can you identify an upright P wave, regular R-R, and a narrow QRS complex? Is the rate fast or slow?

• Sinus Bradycardia

• Sinus Tachycardia

• Normal Sinus Rhythm

• Junctions Escape Rhythm