Ch 19 Key Terms

Question 1

alternating current (AC)

Answer 1

electrical current that periodically flows in opposite directions.

Question 2

amp (A)

Answer 2

a unit of current produced by 1 volt acting through the resistance of 1 ohm.

Question 3

chemical burn

Answer 3

a burn caused by a caustic substance, such as an acid or a base.

Question 4

direct current (DC)

Answer 4

electrical current that flows in one direction only.

Question 5

electrical current

Answer 5

stream of electricity that moves along a conductor.

Question 6

first-degree burn

Answer 6

a burn that affects the epidermis only, causing reddening of the skin and mild edema but no blisters.

Question 7

fourth-degree burn

Answer 7

a burn that extends into muscle and bone.

Question 8

full-thickness burn

Answer 8

a third-degree or fourth-degree burn.

Question 9

partial-thickness burn

Answer 9

a second degree burn.

Question 10

scald

Answer 10

an injury caused by a hot liquid or a hot, moist vapor.

Question 11

second-degree burn

Answer 11

a burn that affects the epidermis and the dermis and results in blisters.

Question 12

superficial burn

Answer 12

a firstdegree burn.

Question 13

thermal

Answer 13

pertaining to heat.

Question 14

third-degree burn

Answer 14

a burn that destroys the epidermis and the dermis and extends into the subcutaneous tissue.

Question 15

volt (V)

Answer 15

a unit of electric potential or electromotive force, equal to 1 watt per ampere or 1 joule per coulomb.