EKGs & ACLS

Question 1

What 2 leads should be positive to say the pt has a normal axis?

Answer 1

I and AVF

Question 2

Would the QRS complex be (+) or (-) in lead I in Left Axis Deviation?

Answer 2

(+)

Question 3

Would the QRS complex be (+) or (-) in lead aVF in Left Axis Deviation?

Answer 3

(-)

Question 4

What is the earliest symptom of digoxin toxicity?

Answer 4

loss of appetite (followed by nausea and vomiting)

Question 5

Emergency Tx for a stable pt w/ supraventricular tachycardia (aside from treating the underlying cause)?

Answer 5

1. Vagal maneuvers
2. Adenosine
3. beta-blockers or Ca++ channel blockers

Question 6

What is the appropriate dose of adenosine for stable supraventricular tachycardia?

Answer 6

6 mg IV push (w/ saline flush)

double for 2nd dose

Question 7

emergency Tx for unstable pt w/ narrow-complex tachycardia?

Answer 7

synchronized cardioversion

Question 8

first-line emergency Tx for unstable pt. w/ bradycardia?

Answer 8

Atropine

Question 9

What is the dose of atropine for unstable bradycardia?

Answer 9

0.5 mg every 3-5 mins (up to 3 mg)

Question 10

Tx for unstable bradycardia if atropine does not work?

Answer 10

transcutaneous pacing
OR
dopamine
OR
Epi