74-81

When the heart rate goes down to 40-60 beats per minute, where is the impulse generated?

• a) In the SA node

• b) Usually on the AV node

• c) From a pacemaker node

• d) From the AV bundle

Which blood vessel leaves the heart and carries blood to all parts of the body?

• a) The superior vena cava

• b) The inferior vena cava

• c) The pulmonary cava

• d) The aorta

What phase does the bottom number of blood pressure represent?

• The relaxing or diastolic phase

• b) The systolic or relaxing phase

• c) The contracting or systolic phase

• d) The depolarization phase

What number does each large square represent on EKG paper?

• a) .04mm

• b) 1mm

• c) 2mm

• 5mm

Each small square represents _____ seconds on EKG paper

• a) .04

• b) .20

• c) .05

• d) .10

how do you calculate the heart rate from an EKG strip

• a) Check the height of the R wave and multiply by 10

• b) You can’t check the patient pulse

• c) Count the number of complete complexes in 3, or 6 seconds and multiply by 20 or 10

• d) Count the number of T waves on the strip and multiply by 6

What is the difference between an agonal rate and ststile on an EKG

• a) systole is a flat line, while agonal is less than 20 beats per minute

• b) Agonal beats come from the atria contractions while the systole comes form the ventricles

• c) Agonal is a flat line and asystole is less than 20 beats per minute

• d) They are both the same

What does an artificial pacemaker look like on an EKG

• a) A squiggly line

• b) It does not show on an EKG

• c) Tall bizarre looking line

• d) A straight hard vertical line