NUR 376 - EXAM 3 - CARDIAC RHYTHMS

Question 1

THREE BIPOLAR LEADS

Answer 1

• leads I, II, III

Question 2

THREE UNIPOLAR LEADS

Answer 2

• lead IV (AVR)
• lead V (AVL)
• lead VI (AVF)

Question 3

SIX UNIPOLAR CHEST LEADS

Answer 3

• precordial/v leads

- V1 - V6

Question 4

LEAD I

Answer 4

• right-arm negative, left- arm positive

Question 5

LEAD II

Answer 5

• right-arm negative, left-leg positive

Question 6

LEAD III

Answer 6

• left arm negative, left-leg positive

Question 7

LEAD AVR

Answer 7

• augmented vector right

- positive electrode right shoulder

Question 8

LEAD AVL

Answer 8

• augmented vector left

- positive electrode left shoulder

Question 9

LEAD AVF

Answer 9

• augmented vector foot

- positive electrode on foot

Question 10

INDICATIONS FOR CARDIOVERSION

Answer 10

• A Fib
• A Flutter
• SVT
• Stable/unstable ventricular tachycardia with a pulse

Question 11

INDICATIONS FOR DEFIBRILLATION

Answer 11

• V Fib
• Pulseless VT
• Torsades

Question 12

EPINEPHRINE INDICATIONS

Answer 12

• Pulseless VT
• V Fib
• Asystole
• Pulseless electrical activity
• Bradycardia

Question 13

EPINEPHRINE DOSAGE

Answer 13

• 1 mg of 1:10,000 solution administered IV push every 3-5 min

Question 14

VASOPRESSIN INDICATIONS

Answer 14

• Pulseless VT
• V Fib
• Asystole
• Pulseless electrical activity

Question 15

VASOPRESSIN DOSAGE

Answer 15

• 40 units directly IV push x 1 only

- given in place of 1st or 2nd dose of epi

Question 16

AMIODARONE INDICATIONS

Answer 16

• Pulseless VT

- V Fib

Question 17

AMIODARONE DOSAGE

Answer 17

• 300 mg IV bolus
• May repeat 150 mg IV bolus x 1
• If given in patient with pulse, dilute slowly and push over time
• If pulseless, push quickly

Question 18

LIDOCAINE INDICATIONS

Answer 18

• Pulseless VT
• V Fib
• 100 mg direct IV push (initial)
• 50 mg direct IV push (subsequent)

Question 19

MAGNESIUM INDICTIONS

Answer 19

• Torsades

Question 20

MAGNESIUM DOSE

Answer 20

• 2 g IV push x 1