ECG

Question 1

What does the p wave show

Answer 1

Atrial depolarization

Question 2

What do PVCs do to the p wave

Answer 2

No p wave

Question 3

What does a p wave look like in V tach

Answer 3

No p wave

Question 4

What does a p wave look like in atrial arrhythmias

Answer 4

Abnormal or not identifiable

Question 5

What does the p wave look like with hyperkalemia

Answer 5

Flattened

Question 6

Which nutrient imbalance causes flattened p waves

Answer 6

Hyperkalemia

Question 7

What does the PR interval show

Answer 7

Time for impulse to go from atria to conduction system to purkinje fibers

Question 8

What does the QRS wave show

Answer 8

Ventricular depolarization

Question 9

What does the QRS wave look like in PVC

Answer 9

Wide and premature

Question 10

What does the QRS wave look like in v tach

Answer 10

Wide and bizarre

Question 11

What does the QRS wave look like in v fib

Answer 11

No QRS

Question 12

What does the QRS wave look like in hyperkalemia

Answer 12

Wide

Question 13

What does the QRS wave look like in hypercalcemia

Answer 13

Wide

Question 14

What does the QRS wave look like on antiarrhythmic agents

Answer 14

Prolonged QRS

Question 15

What does the QRS wave look like in healthy individuals with exercise

Answer 15

Decreased R wave

Increased Q wave

Question 16

Which nutrient imbalance causes the widening on the QRS wave

Answer 16

Hyperkalemia hypercalcemia

Question 17

Which medication has a side effect of prolonging QRS

Answer 17

Antiarrhythmic agents

Question 18

What does the ST segment indicate

Answer 18

The interval between depolarization and repolarization

Question 19

What does the ST segment look like during coronary perfusion

Answer 19

Depression

Question 20

What does the ST segment look like during hypothermia

Answer 20

Elevation

Question 21

What does the ST segment look like on digitalis

Answer 21

Depression

Question 22

What does the ST segment look like in the MI zone of injury

Answer 22

Elevated

Question 23

What does the ST segment look like during exercise in a healthy individual

Answer 23

<1mm change

Question 24

What does a less than 1mm change in ST segment signify with exercise?

Answer 24

Healthy

Question 25

What does a greater than 1mm change in ST segment signify with exercise?

Answer 25

MI

Question 26

Which medication may cause ST segment depression?

Answer 26

Digitalis

Question 27

What does the T wave signify

Answer 27

Ventricular repolarization

Question 28

What happens to the T wave with hyperkalemia

Answer 28

Peaked

Question 29

What happens to the T wave with hypokalemia

Answer 29

Flattened/ inverted

Question 30

What happens to the T wave on digitalis

Answer 30

Flattened

Question 31

What happens to the T wave on quinidine

Answer 31

Flattened

Question 32

What happens to the T wave in the MI zone of ischemia

Answer 32

Inverted

Question 33

Which nutrient imbalance causes T wave peaking

Answer 33

Hyperkalemia

Question 34

Which nutrient imbalance causes T wave flattening/ inversion

Answer 34

Hypokalemia

Question 35

Which medication may causes T wave flattening

Answer 35

Digitalis and quinidine

Question 36

What does the QT interval indicate

Answer 36

Time for electrical systole

Question 37

What effect does hypercalcemia have on the QT interval

Answer 37

Shorten

Question 38

What effect does hypocalcemia have on the QT interval

Answer 38

Prolonged

Question 39

What effect does digitalis have on QT interval

Answer 39

Shortened

Question 40

What effect does quinidine have on QT interval

Answer 40

Lengthened

Question 41

What effect do antiarrhythmic agents have on QT interval

Answer 41

Prolonged

Question 42

What effect does exercise have on QT interval in healthy individuals

Answer 42

Shorten

Question 43

Which drug prolongs QT intervals

Answer 43

Antiarrhythmic agents

Question 44

Which drug shortens QT intervals

Answer 44

Digitalis

Question 45

Which drug lengthens the QT interval

Answer 45

Quinidine

Question 46

What are the PVC emergencies

Answer 46

``` >6 per minute Paired PVC Sequential runs Multi focal Very early ```

Question 47

What will you observe in the ECG of a patient in the zone of MI infarction

Answer 47

Q wave

Question 48

What will you observe in the ECG of a patient in the zone of MI injury

Answer 48

Elevated ST segment

Question 49

What will you observe in the ECG of a patient in the zone of MI ischemia

Answer 49

T wave inversion

Question 50

What will you observe in the ECG of a patient with transmural MI

Answer 50

Q wave or ST segment elevation

Question 51

What will you observe in the ECG of a patient with nontransmural MI

Answer 51

Non Q wave, non ST elevation

Question 52

Changes in the anterior wall are seen on

Answer 52

V1-V6

Question 53

Changes in the arteroseptal are seen on

Answer 53

V1-V2

Question 54

Changes in the anteroapical are seen on

Answer 54

V3-V4

Question 55

Changes in the anterolateral are seen on

Answer 55

V5-V6, I, aVL

Question 56

Changes in the lateral wall are seen on

Answer 56

Leads I and aVL

Question 57

Changes in the inferior wall are seen on

Answer 57

II, III, aVF

Question 58

Changes in the posterior wall are seen on

Answer 58

Not usually seen on an ECG but V7-9

Question 59

Arrhythmias with age

Answer 59

Longer PR and QT intervals | Wider QRS