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Question 18M.3.HL.TZ2.c

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Date May 2018 Marks available [Maximum mark: 3] Reference code 18M.3.HL.TZ2.c
Level HL Paper 3 Time zone TZ2
Command term Outline Question number c Adapted from N/A
c.
[Maximum mark: 3]
18M.3.HL.TZ2.c

Outline the use of defibrillation to treat life-threatening cardiac conditions.

[3]

Markscheme

a. defibrillator is electrodes/a metal paddle/pad that is placed on the patient’s chest 

b. the device determines whether fibrillation is happening 

c. a series of electrical shocks are delivered through the electrodes 

d. electrical impulse is used to depolarize the heart muscle 

e. to re-establish the function of the SA node/natural pacemaker/natural rhythm «of the heart»

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