Cardiac Emergencies

Question 1

Cardiac output=

Answer 1

HRXSR

Question 2

What ventricle has more muscle

Answer 2

Left

Question 3

What is preload?

Answer 3

Preload is the ammount of blood within the ventricles priot to contraction

Question 4

Starlings law?

Answer 4

Greater volumes of blood=greater stretch of ventricles=greater contractility and increases cardiac output.

Question 5

Nirmal electrical pathophysiology heart?

Answer 5

SA(60-100), INTERNODAL, AV(40-60), BUNDLE OF HIS, BUNDLE BRANCHES, PERKINJE(20-40)

Question 6

Inotropy

Answer 6

Strength of contraction

Question 7

Chronotropy

Answer 7

Heart rate

Question 8

Dromotropy

Answer 8

Electrical impulses

Question 9

One small box on ecg

Answer 9

0.04 secon(40 ms)

Question 10

Standard speed of ECG

Answer 10

25 mm/second

Question 11

What type of ecg rhythm is a vagal maneuver for?

Answer 11

SVT

Question 12

Infarction vs ischemia

Answer 12

Infarction: cell death, elevations
Ischemia: lack of 02, depressions, flipped Ts

Question 13

Pathological Q wave?

Answer 13

Old infarction
Marked patholgical at; 
Greater than 40 ms wide 
Or 
Greater than 2 mm deep/25 percent of qrs 
Seen in v1-v3

Question 14

Cor pulmonale?

Answer 14

RVH due to pulmonary hypertension