2.0 Injuries Caused by Electric Shocks

Question 1

What determines the effects of electricity on the body, according to the passage?

a. The voltage alone
b. The current and duration of exposure
c. The length of the electrical source
d. The type of electrical equipment

Answer 1

B

Question 2

Why is the path of electricity through the body critical, as mentioned in the passage?

a. It determines the color of electrical burns.
b. It affects the visibility of the electrical shock.
c. The path through the heart or brain is more life-threatening than through the fingers.
d. It determines the speed of the electrical current.

Answer 2

C

Question 3

What is the role of voltage in the effects of electricity on the body?

a. It determines the color of electrical burns.
b. It is the pressure that pushes the current through the body.
c. It increases the resistance of the electrical source.
d. It affects the visibility of the electrical shock.

Answer 3

B

Question 4

How does exposure to household voltages impact a victim, according to the passage?

a. It causes instant unconsciousness.
b. It results in prolonged contact with the electrical source.
c. The victim may suffer muscle spasms and be locked onto the electrical source until released.
d. It has no significant impact on the victim.

Answer 4

C

Question 5

At very high voltages, what may happen to a victim, especially if working from heights?

a. The victim may experience muscle spasms.
b. The victim may be quickly blown clear of the circuit, resulting in a significant fall.
c. The victim may be locked onto the electrical source until released.
d. The victim may experience prolonged exposure to low voltage.

Answer 5

B

Question 6

What additional factors affect the effects of electricity on the body, as outlined in the passage?

a. Time of day and external temperature
b. Skin condition, area of skin exposed, pressure against the source, and moisture level
c. Frequency of electrical shocks
d. The type of clothing worn by the victim

Answer 6

B

Question 7

How does the passage describe the impact of an electric arc on a victim?

a. It causes instant unconsciousness.
b. It results in prolonged contact with the electrical source.
c. It may cause burns, clothing ignition, temporary blindness, and serious eye damage.
d. It has no significant impact on the victim.

Answer 7

C

Question 8

What should be assessed in a victim of electrical shock, according to the passage?

a. Time of day and external temperature
b. Presence of external injuries only
c. Effects on the body such as chest muscle contraction, respiratory distress, and burns
d. Frequency of electrical shocks

Answer 8

C

Question 9

At what current level does respiratory arrest become probable, according to Table 2?

a. 17mA - 99mA
b. 100mA - 200mA
c. 5mA - 9mA
d. 21mA - 99mA

Answer 9

D

Question 10

What is the probable outcome at current levels above 2,000mA, according to Table 2?

a. Muscle spasms and nerve damage
b. Ventricular fibrillation and respiratory arrest
c. Cardiac arrest, internal organ damage, and severe burns
d. Perception level and slight tingling sensation

Answer 10

C

Question 11

What is the first step emergency personnel should take before treating a victim of electrical injuries?

a. Start artificial respiration.
b. Assess for fractures.
c. Eliminate the electrical hazard by turning off the power supply.
d. Examine for exit burns.

Answer 11

C

Question 12

What action should be taken by emergency personnel if a victim experiences cardiac arrest?

a. Assess for fractures.
b. Start artificial respiration.
c. Begin cardiopulmonary resuscitation (CPR) protocols and/or AED (automatic external defibrillation).
d. Examine for exit burns.

Answer 12

C

Question 13

What is the likely cause of rapid and irregular heartbeat (ventricular fibrillation) mentioned in the passage?

a. High voltage electrical shock.
b. Low voltage electrical shock.
c. Arc flash burns.
d. Fractures caused by involuntary muscle reactions.

Answer 13

B

Question 14

What is the immediate action recommended for a victim whose breathing has stopped due to electrical contact (shock)?

a. Start artificial respiration.
b. Begin cardiopulmonary resuscitation (CPR) protocols.
c. Monitor the pulse for circulation.
d. Assess for fractures.

Answer 14

A

Question 15

What is the emergency procedure for electrical burns, and why is prompt medical attention necessary?

a. Cover wounds with clean, dry dressings; medical attention prevents shock.
b. Apply ice to the burns; medical attention prevents fractures.
c. Use a heating pad on the burns; medical attention prevents infections.
d. Examine for exit burns; medical attention prevents respiratory distress.

Answer 15

A

Question 16

How should emergency personnel treat a victim experiencing shock (electrical contact-induced)?

a. Immobilize the affected area.
b. Cover both eyes with thick, cool, moist dressings.
c. Begin cardiopulmonary resuscitation (CPR) protocols.
d. Loosen clothing, cool by fanning if skin is hot, cover with a blanket if cold or clammy.

Answer 16

D

Question 17

What is the recommended approach for treating arc flash burns to the eyes?

a. Remove clothing that has melted into the skin.
b. Cover both eyes with thick, cool, moist dressings and lightly bandage in place.
c. Have the patient walk to medical help.
d. Apply ice to the burns.

Answer 17

B

Question 18

Why is it cautioned never to have a patient walk if they have arc flash burns?

a. Walking may worsen fractures.
b. Walking may cause respiratory distress.
c. Walking may result in cardiac arrest.
d. Walking may increase damage to burned skin and eyes.

Answer 18

D

Question 19

What should emergency personnel assess for in a victim of electrical injuries related to fractures?

a. Breathing difficulties.
b. Cardiac arrest.
c. Involuntary muscle reactions.
d. Fractures or dislocations.

Answer 19

D

Question 20

Why is it emphasized that even a short exposure to electricity requires medical monitoring for up to 24 hours?

a. To prevent shock.
b. To monitor for respiratory distress.
c. To assess for fractures.
d. To detect irregular heart rhythm leading to potential death.

Answer 20

D