Random

Question 1

What should you look at first when looking at EKG

Answer 1

Rate, rhythm, axis

Question 2

If lead I is up and aVF is up, what is the axis

Answer 2

Normal

Question 3

lead 1 up aVF down is what axis

Answer 3

Left axis deviation

Question 4

If lead 1 is down and aVF is up what is the axis

Answer 4

Right axis deviation

Question 5

What is lead 1 down and aVF down

Answer 5

Extreme right axis deviation

Question 6

What is normal PR interval

Answer 6

<0.2

Question 7

What is normal QRS

Answer 7

<0.12

Question 8

What is normal QT

Answer 8

<0.45

Question 9

What are the anterior leads

Answer 9

V1-4

Question 10

What is responsible for supplying the anterior leads

Answer 10

LAD

Question 11

What is responsible for supplying the inferior leads

Answer 11

RCA

Question 12

What are the inferior leads

Answer 12

II, III, aVF

Question 13

What are the lateral leads

Answer 13

I, V5, V6

Question 14

What supplies the lateral leads

Answer 14

Circumflex A

Question 15

What is another formula for CO

Answer 15

(Pa-Pv)/TPR

Question 16

What is lusitropy

Answer 16

Speed of relaxation

Question 17

How is lusitropy related to inotropy

Answer 17

Inverse

Question 18

In hypovolemic shock, we don’t want to stimulate what response

Answer 18

Αdrenergic

Question 19

What is normal mean arterial pressure

Answer 19

About 93

Question 20

Pulse pressure is related to

Answer 20

Compliance

Question 21

What does aortic stenosis cause in pulse pressure

Answer 21

Decrease b/c systolic pressure is decreased

Question 22

Blocking serotonin receptors causes what

Answer 22

Vasodilation

Question 23

What is the difference between active and reactive hyperemia

Answer 23

Reactive is due to an ischemic event being cleared

Active is normal through exercise or other means

Question 24

What does β1 do systemically

Answer 24

• Increase HR
• increase contractility
• increase nodal conduction
• increase renin secretion
• increase lipolysis

Question 25

What does α1 do systemically

Answer 25

• constricts blood vessels in skin
• constricts splanchnic
• constricts GI sphincters
• constricts bladder sphincters

Question 26

What does β2 do systemically

Answer 26

• dilates skel musc vessels
• dilates bronchiole SM
• relaxes bladder wall

Question 27

What causes renin secretion

Answer 27

Drop in BP or β1 activation

Question 28

What is happening in an S3 in healthy individuals?

Answer 28

Mitral valve is opening and the large inflow of blood makes a sound when striking a compliant ventricle

Question 29

What is S3 commonly called? S4?

Answer 29

Ventricular gallop; atrial kick