12-Lead/ACS

Question 0

What do the R-waves look like in V3 & V4?

Answer 0

Equal positive and negative deflection

Question 1

What do the R-waves look like in V1 & V2?

Answer 1

Negative

Question 2

What do the R waves look like in leads V5 & V6?

Answer 2

Positive

Question 3

What are the 3 I’s of ACS?

Answer 3

Ischemia (warning sign)
Injury
Infarction

Question 4

What are the classic signs of ACS?

Answer 4

• Central anterior chest pain

- Pain is dull, fullness, tightness, or crushing

Question 5

What are some atypical signs of ACS?

Answer 5

• Musculoskeletal, positional or pleuritic
• Often unilateral
• May be sharp or stabbing
• Epigastric discomfort
• Often seen in females, diabetics, or elderly

Question 6

What are the anginal equivalents?

Answer 6

Dyspnea, palpitations, syncope or presyncope, general weakness, DKA, general “unwell feeling”, sense of “doom”

Question 7

It is not chronic stable angina if…

Answer 7

• new onset
• low exertion threshold
• change in pattern of relief
• new diagnosis

Question 8

What are significant risk factors of ACS?

Answer 8

• Family history of CAD

- Family hyperlipidemia (fat)

Question 9

What are the limb leads?

Answer 9

aVR, aVL, aVF, I, II, III

Question 10

What are the chest leads?

Answer 10

V1-V6

Question 11

What is the most accurate view of the left ventricle?

Answer 11

Left anterior (V3 & V4)

Question 12

When should V4R be looked at?

Answer 12

If elevation in 2 or more of the following leads: II, III, aVF

Question 13

Which leads look at the inferior heart?

Answer 13

II, III, aVF

Question 14

Which leads look at the septal wall of the heart?

Answer 14

V1 & V2

Question 15

Which leads look at the anterior heart?

Answer 15

V3 & V4

Question 16

Which leads look at the lateral heart?

Answer 16

V5, V6, I, & aVL

Question 17

What percentage of population is left system dominant?

Answer 17

10%

Question 18

What signifies Acute MI recognition?

Answer 18

ST segment elevation

• 1mm or more
• 2 ( or more) anatomically contiguous leads

Question 19

Where does the view of Lead I begin and end?

Answer 19

Upper left limb to upper right limb

Question 20

Where does the view of Lead II begin and end?

Answer 20

Lower left limb to upper right limb

Question 21

Where does the view of Lead III begin and end?

Answer 21

Lower left limb to upper left limb

Question 22

Where does the view of Lead aVL begin and end?

Answer 22

Upper left limb to heart

Question 23

Where does the view of Lead aVF begin and end?

Answer 23

Lower left limb to heart