Name this dysrhythmia:

Idioventricular

(ventricular bradycardia)

An ECG strip shows a rhythm with normal P-R, P’s are 1:1 with

QRS complexes, rate 70, rhythm regular, QRS 0.14 sec.

What is the name of the rhythm?

NSR with a bundle

An ECG strip shows wide QRS complexes at a rate of 170. No P

waves are seen. One possible interpretation of this rhythm

is V Tach. What is another possible

interpretation?

SVT with a bundle branch block

Describe how the marks on the border of the ECG paper can be

used to determine heart rate.

The marks are 3 seconds apart. Count the number of complexes in six seconds and multiply by

ten to find the heart rate.

Name the value of one small square on ECG paper:

1) In units of time (horizontal)

2) In metric units of length (vertical)

1) 0.04 Seconds

2) 1 millimeter

Describe the conventional method of standardization

of an ECG machine

A one millivolt impulse will cause a deflection of 10 mm (which is two large squares)

Name three different indications that PVC’s should be treated

1) Multifocal2) R on T phenomenon3) Coupled (or runs of VT)4) Associated with MI or ischemia

Where is the primary disease in patients with first, second, or

third degree block?

The A-V node

Name (in order) the components of the conduction system

of the heart.

Sino-atrial node(internodal pathways)Atrio-ventricular node

Bundle of HisBundle branchesPurkinje fibers

State in order the numbers used to determine the heart rate by

counting the large squares between R waves

(answer counting up to at least 7 squares)

300-150-100-75-60-50-43-37-33-30

Name this dysrhythmia

Controlled atrial fibrillation

Why is the sinus node normally in control of the heart?

Because it has the fastest inherent discharge rate

What are the normal values for:

1) P-R interval

2) QRS duration

1) 0.12 -0.20 seconds

2) Up to 0.10 seconds

Describe the triad of infarction

1) Pathological Q

2) Elevated S-T segment

3) Inverted T wave