Exam 7: Waveforms Rate Rhythm and Artifacts

The measurement of a wave starts when the wave departs the____________.

When the heart rhythm or heart rate is consistently or predictably irregular or abnormal, or absent, it is known as a(n)__________ .

Which of the following heart rhythms, as shown in the figure below,   must have all the normal rhythm values plus the P wave must be upright and uniform in Lead II and the rhythm must be consistent with very little deviation?

Which of the following intervals represents the entire ventricular depolarization and repolarization cycle?

Which of the following is defined as a measurable, regularly recurring, impulse of the heart?

The normal T wave is usually what shape in appearance?

A normal heart rhythm has a heartbeat at regular intervals of how many beats per minute?

______________ is the strength or magnitude of the action potential.

Stress, exercise, general health, previous cardiac events, even sleeping can all alter the heart rate. What type of heart rate does the ECG tracing in the figure below represent?

During what segment will the atria and ventricles be relaxed, which means the heart is in a diastolic state?

Which of the following waves sometimes appears as a result of certain antiarrhythmic drug effects, drug toxicity, or electrolyte imbalances?

What wave is thought to represent repolarization of the Purkinje fibers?

Lead reversals can be spotted on an ECG usually by the inversion of ___________waves.

What type of heart rhythm deviates from a normal rhythm on a regular basis and usually occurs as a patterned event?

Which of the following shows up on an ECG tracing as a curved or spiked line either above or below the isoelectric line?

Which of the following movement errors does the ECG tracing below show?

Which of the following limb lead reversal errors does this ECG tracing represent?

With an irregularly irregular rhythm there is no R-R pattern or similarity between the P-R interval or QRS complexes. Irregularly irregular rhythms are due to abnormalities found in the atria. What disorder that has an irregularly irregular rhythm is illustrated in the ECG tracing in the figure below?  

The morphology of a normal S wave is a(n) ______________.

Which of the following is the amount of electrical stimulus or the difference in action potential created by cardiac cell movement within the heart?