TMT Study Prep Exam 1

What is the main purpose of the left side of the heart?

• Pump oxygenated blood to the body

• Pump deoxygenated blood to the lungs

• Receive oxygenated blood from the body

• Receive deoxygenated blood from the lungs

If there are 10 R intervals in a 6-second strip, what is the estimated heart rate?

(a)  

If you have 30 large boxes on an ECG strip, how much time does that represent?

(a)  

To use the 6-second method, you must ____ the number of ____ in a ____ time frame and multiply that number by ____.

• count; R waves; 6-second; 10

• measure; P waves; 10-second; 6

• estimate; QRS complexes; 5-second; 12

• record; T waves; 6-second; 5

On an ECG, one large box represents how much time?

• 0.20 seconds

• 0.04 seconds

• 0.10 seconds

• 0.50 seconds

On an ECG, how many small boxes represent one second?

• 25 boxes

• 50 boxes

• 5 boxes

• 10 boxes

What is the medical term for a rapid heartbeat?

• Tachycardia

• Bradycardia

• Arrhythmia

• Hypotension

What is the medical term for a slower than normal heart rate?

• Bradycardia

• Tachycardia

• Hypertension

• Dyspnea

Which part of the heart is responsible for initiating the electrical impulse in a normal heartbeat?

• SA node

• AV node

• Bundle of His

• Purkinje fibers

What is the medical term for an irregular heartbeat?

• Arrhythmia

• Hypertension

• Hypoglycemia

• Atherosclerosis