NHA CET practice

You are reviewing a tracing for a patient with a ventricular pacemaker. What rhythm pattern should you expect after the pacing spike?

• regular P waves

• AV delay between 0.12 and 0.16 seconds

• QRS interval between 0.06 and 0.10 seconds

• Wide QRS interval

Measure the PR interval:

• 0.10

• 0.52

• 0.16

• 0.28

Which interval is used to determine the regularity of ventricular depolarization?

• P-P wave interval

• R-R wave interval

• QT interval

• PR interval

Which action should you take to prepare for a standard 12-lead EKG?

• Encourage the patient to ask questions during the procedure

• Instruct the patient to hold their breath

• Place electrodes over the patient's chest hair

• Have the patient remove any jewelry

Which finding indicates myocardial infarction?

• Cyanosis

• Facial drooping

• Arm weakness

• Aphasia

Which of the EKG machine functions is used to control and regulate the height of the EKG waveform?

• speed

• Output display

• Artifact filter

• Gain

When a patient is experiencing ventricular tachycardia, which sign is often present?

• multiple premature ventricular contractions in a row

• Decreased heart rate

• Absence of R-R interval

• Narrow QRS complexes on the EKG tracing

Which of the following methods can be used to calculate both irregular and regular rhythms?

• 6 second method

• P-P method

• 1500 method

• 300 method

If you heard another staff member make derogatory comments about a patient's appearance, what tort would that be an example of?

• libel

• assault

• slander

• battery

What is an expected finding of impaired conduction through the AV node?

• Decreased QT interval

• Prolonged QRS interval

• Prolonged QT interval

• Prolonged PR interval