Mod 5 Environmental Emergencies Flashcards Preview

Corpsman A-School > Mod 5 Environmental Emergencies > Flashcards

Flashcards in Mod 5 Environmental Emergencies Deck (18):
1

Ways in which the body loses heat

-Conduction
-Convection
-Radiation
-Evaporation
-Respiration

2

Conduction

-The transfer of heat from one material to another through direct contact.

3

Water chill

-Chilling caused by conduction of heat from the body when the body or clothing is wet

4

Convection

-Carrying away of heat by currents of air, water, or other gases or liquids

5

Wind chill

-Chilling caused by convection of heat from the body in the presence of air currents

6

Radiation

-Sending out energy, such as heat, in waves into space

7

Evaporation

-The change from liquid to gas. When the body perspires or gets wet, evaporation of the perspiration or other liquid into the air has a cooling effect on the body.

8

Respiration

-Breathing. During respiration, body heat is lost as warm air is exhaled from the body

9

Hypothermia

-When cooling affects the entire body or cooling develops.

10

Situations where hypothermia may be susceptible

-Ethanol (alcohol) intake
-Underlying illness such as a circulatory disorder that makes patient susceptible to cold
-Major trauma such as being trapped in a car wreck in cold weather. Or shock making preventing parts from being warmed
-Outdoor resuscitation such as if the patient was drowning

11

Stages of hypothermia

-99F-96F/37.0C-35.5C Shivering
-95F-91F/35.5C-32.7C Intense shivering, difficulty speaking
-90F-86F/32.0C-30.0C Shivering decreases and is replaced by a strong muscular rigidy
-85F-81F/29.4C-27.2C Patient becomes irrational, loses contact with environment, and drifts into a stuporous state.
-80F-78F/26.6C-20.5C Patient loses consciousness and does not respond to spoken words
-Skin may appear red in early stages

12

Passive rewarming

-Covering a hypothermic patient and taking other steps to prevent further heat loss and help the body rewarm itself

13

Active rewarming

-Application of an external heat source to rewarm the body of hypothermic patient

14

Steps for actively rewarming a patient who is alert and responding appropriately

-Remove all of patients wet clothing
-During transport actively rewarm
-Provide care for shock
-Except in mild cases (Shivering) transport patient
-Rewarm patient slowly
-Use central warming
-If transport must be delayed giving warm bath is helpful
-Keep patient at rest
-Avoid rough handling

15

Central warming

-Application of heat to the lateral chest, neck, armpits, and groin of a hypothermic patient

16

Care for patient who is unresponsive or not responding appropriately

-Ensure open airway
-Provide O2 that has been passed through warm water humidifier
-Wrap patient in blankets
-Transport immediately

17

Care in extreme hypothermia

-Assess carotid pulse. If no pulse begin CPR and prepare to apply AED
-If no pulse care in steps for unresponsive or not responding

18

Local cooling

-Cooling or freezing of particular (local) parts of the body.
-Commonly affects ears, nose, face, hands and fingers