Exam 8: Recognizing Arrhythmias Pacemakers and Emergencies

Which of the following presents on the ECG as chaotic indistinguishable waves caused by multiple ectopic and reentry paths originating from many different areas in the ventricle walls, yet has no recognizable rhythm or pattern?

What type of heart rates occur more commonly in infants, children, and young adults who are anxious or extremely fatigued?

Junctional tachycardia occurs when the junctional rate is how many beats per minute?

The ECG tracings in Figure 8-18 are very short vertical straight lines which can be as small as 2 ms. What do these tracings represent?  

When the heartbeat originates outside of the SA node, it is called a(n)__________.

Left untreated, some atrial arrhythmias can cause _________ to form in the heart.

____________ is defined as a decrease in oxygenated blood flow to the heart muscle.

Which of the following is the use of high electrical energy to destroy abnormal electrical pathways?

The ECG tracing below shows how an abnormal ST segment may appear with which of the following?

The treatment for controlling atrial arrhythmias is to first control the heart rate, then use of ______________ to return the atria to a sinus rhythm.

What heart condition does this tracing indicate is evolving?

Except for ______________, in the other ventricular arrhythmias, the P wave is non-existent, so there is no atrial depolarization, no atrial contraction, and no atrial kick.

When medication no longer controls tachycardia, which of the following may be implanted into the patient to control these life-threatening arrhythmias?

Which of the following weakens an arterial wall and can cause the vessel to rupture?

Embolic strokes often form in the heart due to _____________.

In atrial arrhythmias, the atrioventricular (AV) node overrides the SA node impulses and the AV node becomes the heart's____________.

Blockage of one or more coronary arteries that supply blood to the left ventricle is usually the cause of which of the following?

The primary difference between the sinus tachycardia and atrial tachycardia is found in the appearance of which of the following ECG tracings?

What type of pacemaker rhythm is shown in the ECG tracing below?

The difference between a pacemaker and the ICD is that the ICD can deliver two levels of electrical__________.