Chapter 32 JBL

A person's ability to shiver is lost when his or her body temperature falls below: Select one: A. 90°F (32°C). B. 94°F (34°C). C. 95°F (35°C). D. 92°F (33°C).

90°F (32°C).

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: Select one: A. abdomen. B. neck. C. forehead. D. chest.

abdomen.

In order for sweating to be an effective cooling mechanism: Select one: A. several layers of clothing must be worn. B. it must be able to evaporate from the body. C. the body must produce at least 1 L per hour. D. the relative humidity must be above 90%.

it must be able to evaporate from the body.

Signs and symptoms of heat exhaustion and associated hypovolemia include all of the following, EXCEPT: Select one: A. normal vital signs. B. dizziness, weakness, or faintness. C. normal thirst. D. cold, clammy skin with ashen pallor.

normal thirst.

High air temperature reduces the body's ability to lose heat by: Select one: A. conduction. B. radiation. C. evaporation. D. convection.

radiation.

The two MOST efficient ways for the body to eliminate excess heat are: Select one: A. perspiration and tachycardia. B. respiration and bradycardia. C. hyperventilation and tachycardia. D. sweating and vasodilation.

sweating and vasodilation.

Heat stroke occurs when: Select one: A. a person's core body temperature rises above 103°F (39°C). B. a person becomes dehydrated secondary to excess water loss. C. the ambient temperature exceeds 90°F (32°C) and the humidity is high. D. the body's heat-eliminating mechanisms are overwhelmed.

the body's heat-eliminating mechanisms are overwhelmed.

Heat loss from the body through respiration occurs when: Select one: A. warm air is exhaled into the atmosphere. B. the core body temperature is greater than 98°F (37°C). C. cool air is inhaled and displaces warm air. D. air temperature is greater than body temperature.

warm air is exhaled into the atmosphere.

When the body loses sweat, it also loses: Select one: A. erythrocytes. B. nutrients. C. electrolytes. D. plasma.

electrolytes.

Covering a patient's _________ will significantly minimize radiation heat loss. Select one: A. abdomen B. extremities C. chest D. head

head

In contrast to the brown recluse spider, the black widow spider: Select one: A. has a bite that usually produces local pain but no systemic signs or symptoms. B. is very small and has a violin-shaped marking on its back. C. has a bite that is typically painless until a blister develops. D. is large and has a red-orange hourglass mark on its abdomen.

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

Treatment of drowning or near drowning begins with: Select one: A. ventilation with 100% oxygen via bag-mask device. B. rescue and removal from the water. C. suctioning the lungs to remove the water. D. opening the airway.

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: Select one: A. accurate because shivering affects hemoglobin binding. B. accurate because he has signs of respiratory failure. C. a direct reflection of his increased respiratory rate. D. secondary to decreased perfusion in the extremities.

secondary to decreased perfusion in the extremities.

Signs and symptoms of severe systemic hypothermia include all of the following, EXCEPT: Select one: A. coma. B. very slow respirations. C. weak pulse. D. shivering.

shivering.

An air embolism associated with diving occurs when: Select one: A. the alveoli completely collapse due to high pressure. B. the diver hyperventilates prior to entering the water. C. high water pressure forces air into the mediastinum. D. the diver holds his or her breath during a rapid ascent.

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

The body's natural protective mechanisms against heat loss are: Select one: A. respiration and vasoconstriction. B. vasodilation and respiration. C. shivering and vasodilation. D. vasoconstriction and shivering.

vasoconstriction and shivering.

Which of the following medications increases a person's risk of a heat-related emergency? Select one: A. Motrin B. Diuretics C. Aspirin D. Tylenol

Diuretics

Hypothermia can worsen internal bleeding secondary to: Select one: A. blood-clotting abnormalities. B. severe muscular rigidity. C. a decreased heart rate. D. cardiac arrhythmias.

blood-clotting abnormalities.

The organs most severely affected by air embolism are the: Select one: A. brain and lungs. B. heart and lungs. C. brain and spinal cord. D. brain and heart.

brain and spinal cord.