ECG Foundations

Question 1

Horizontally what do the small boxes equal out to?

Answer 1

.04

Question 2

Horizontally what do the large boxes equal out to?

Answer 2

.20

Question 3

Vertically what do the small boxes equal out to?

Answer 3

.1 mV

Question 4

Vertically what do the large boxes equal out to?

Answer 4

.5mV

Question 5

How do you find HR by counting the boxes?

Answer 5

Count boxes between R-R then multiply by 40 the take 60,0000 and divid it by the number you got

Question 6

How to convert HR from bpm to ms

Answer 6

60,000/ bpm

Question 7

How to convert HR from ms to bpm

Answer 7

60,000/ ms

Question 8

What is the equation for corrected QTc?

Answer 8

QT/ Sort of RR in seconds

Question 9

Normal PR

Answer 9

120-200 ms

Question 10

Normal QTc

Answer 10

350-440 in men and 350-450 in women

Question 11

Long QTc indicated what?

Answer 11

Hypocalemia

Question 12

Short QTc indicates what?

Answer 12

Hypercalcemia

Question 13

T waves indicate?

Answer 13

Depolarization of the ventricles

Question 14

Peaked T waves indicate?

Answer 14

Hyperkalemia

Question 15

U waves indicate?

Answer 15

Represents the final phase of ventricular depolarization

Question 16

Prominent U waves?

Answer 16

Hypokalemia

Question 17

1 degree AV Block

Answer 17

Long PR

Question 18

2nd degree type 1

Answer 18

PR lengthens until a beat is dropped

Question 19

2nd Degree type 2

Answer 19

P waves but no QRS