NHA CET practice quiz

What is the length of time represented by the smallest boxes on EKG graph paper?

• 0.02 seconds

• 0.04 seconds

• 0.10 seconds

• 0.12 seconds

What is the purpose of the EKG gain setting?

• To adjust the amplitude of the EKG waveforms for better visibility.

• To change the speed of the EKG paper.

• To filter out noise from the EKG signal.

• To calibrate the EKG machine for different patients.

What should be done if the EKG tracing shows irregularities?

• Ignore the irregularities and continue monitoring.

• Notify the healthcare provider for further evaluation.

• Change the patient's position and recheck the EKG.

• Administer medication immediately without consulting a provider.

What should you do after performing a 12-lead EKG on a patient?

• Check that the tracing is free from artifacts and then disconnect the patient from the machine.

• Immediately interpret the EKG results and inform the physician.

• Leave the patient connected to the machine for further monitoring.

• Print out the EKG results and file them without review.

Where should the V6 electrode be placed on a 4-year-old patient during a standard 12-lead EKG?

• Left midaxillary line

• Right midaxillary line

• Left anterior axillary line

• Right anterior axillary line

What is the purpose of the limb leads in a 12-lead EKG?

• To provide a view of the heart's electrical activity from different angles.

• To measure blood pressure during the EKG procedure.

• To assess the patient's respiratory rate during the test.

• To determine the patient's heart rate variability.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the significance of the V1 electrode placement?

• It is placed in the fourth intercostal space at the right sternal border to monitor the right side of the heart.

• It is used to monitor the left side of the heart in the second intercostal space.

• It is placed in the fifth intercostal space at the left sternal border to monitor the left atrium.

• It is used to assess the electrical activity of the lungs.

What does the P wave represent in an EKG?

• Atrial depolarization.

• Ventricular depolarization.

• Atrial repolarization.

• Ventricular repolarization.

What should an EKG technician do when arriving to perform a 12-lead EKG on a patient already attached to a 5-lead monitor?

• Leave the 5-lead electrodes in place and attach the 12-lead electrodes on top of them.

• Remove the electrodes for the 5-lead monitor before attaching the electrodes for the 12-lead EKG.

• Attach the 12-lead electrodes without removing the 5-lead electrodes and monitor the patient.

• Consult with the physician before making any changes to the monitoring setup.

What is the role of the EKG technician?

• To perform EKG tests and ensure accurate readings for diagnosis.

• To administer anesthesia during surgeries.

• To conduct physical therapy sessions for patients.

• To interpret X-ray images for medical diagnosis.