EKG Cert Test Practice Modules 2&3

Resting tab electrodes (EKG stickers) should NOT be used for MORE than how many *consecutive* tracings?

• One

• Two

• Three

• Four

Why should resting tab electrodes (EKG stickers) NOT be used for more than TWO * consecutive * EKG tracings?

• The electrodes will not re-adhere to the skin after being removed between tracings

• The electrodes cannot conduct a signal after the two EKG tracings

• The electrodes will not conduct accurately after two EKG tracings

• The electrodes need to be cleaned after 2 EKG tracings

An EKG tech is performing a stress test for a patient. Which of the following EKG changes indicates that the patient is beginning to show signs of ischemia?

• Depressed ST segment

• PR interval of 0.16 seconds

• QRS complex of 0.10

• Presence of a U wave

When performing a posterior EKG, which of the following is the correct location for placement of lead V8?

• Right mid-scapular line

• Left mid-scapular line

• Right posterior axillary line

• Left posterior axillary line

When performing a posterior EKG for a * dextrocardia * patient, which of the following is the correct location for placement of lead V8?

• Left mid-scapular line

• Right mid-scapular line

• Right posterior axillary line

• Left posterior axillary line

Which of the following EKG machine functions should an EKG technician use to control and regulate the height of EKG waveforms on the tracing?

• Speed

• Gain

• Output display

• Artifact filter

What is the proper rate formula for the 1500 method?

• Count each R wave within a 6 second strip and multiply by 10

• Count the large boxes between 2 R waves and divide 300

• Count the small boxes between 2 R waves and divide 1500

• Count the large boxes between R waves and divide 1500

What is the proper formula to calculate heart rate using the 300 method?

• Count the number of large boxes between 2 R waves and divide 300

• Count the R waves across a 6 second strip and multiply by 10

• Count the number of small boxes between 2 R waves and divide 1500

• Count the number of large boxes between 2 R waves and multiply by 300

Which of the following is the result of atrial depolarization?

• T wave

• U Wave

• QRS complex

• P wave

Which of the following leads are bipolar leads?

• Leads, I II, III

• Leads V1-V6