EMT Chapter 32

In order for sweating to be an effective cooling mechanism:

it must be able to evaporate from the body.

To assess a patient's general body temperature, pull back on your glove and place the back of your hand on his or her skin at the:

abdomen.

Signs and symptoms of heat exhaustion and associated hypovolemia include all of the following, EXCEPT:

normal thirst.

A person's ability to shiver is lost when his or her body temperature falls below:

90°F (32°C).

The organs most severely affected by air embolism are the:

brain and spinal cord.

When the body loses sweat, it also loses:

electrolytes.

Covering a patient's _________ will significantly minimize radiation heat loss.

head

Heat loss from the body through respiration occurs when:

warm air is exhaled into the atmosphere.

In contrast to the brown recluse spider, the black widow spider:

is large and has a red-orange hourglass mark on its abdomen.

High air temperature reduces the body's ability to lose heat by:

radiation.

Treatment of drowning or near drowning begins with:

rescue and removal from the water.

You are assessing a man with suspected hypothermia. The patient is conscious and alert, and is actively shivering. His respiratory rate is increased, but his breathing is unlabored, and the pulse oximeter reads 72%. The pulse oximetry reading is MOST likely:

secondary to decreased perfusion in the extremities

Signs and symptoms of severe systemic hypothermia include all of the following, EXCEPT

shivering.

The two MOST efficient ways for the body to eliminate excess heat are:

sweating and vasodilation.

Heat stroke occurs when:

the body's heat-eliminating mechanisms are overwhelmed.

An air embolism associated with diving occurs when:

the diver holds his or her breath during a rapid ascent.

The body's natural protective mechanisms against heat loss are:

vasoconstriction and shivering.

Heat loss resulting from sitting on snow

Conduction

Heat loss that occurs from helicopter rotor blade down wash

Convection

Temperature of the central part of the body

Core temperature

Which of the following medications increases a person's risk of a heat-related emergency?

Diuretics

Heat loss resulting from sweating

Evaporation

Heat loss resulting from standing in a cold room

Radiation

Hypothermia can worsen internal bleeding secondary to:

blood-clotting abnormalities.