What are some of the chemical substances proposed to increase pain when concentrated in a particular area?
What will be an ideal response?
? acetylcholine
? histamine
? bradykinin
? prostaglandin
? capsaicin
? potassium ions
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You are assessing a patient in the front seat of a vehicle that was involved in a head-on collision. As you examine the interior of the vehicle, you notice the air bags have not deployed. What action should you take in order to render the scene safe to work?
A) Use a long spine board to shield yourself from the undeployed air bag. B) Disconnect the battery and continue assessing the patient. C) Turn the ignition to the "off" position and wait 2 minutes before entering the vehicle. D) Disconnect the battery and wait 2 minutes before entering the vehicle.
Foam extinguishes fire via the following mechanisms: cooling, smothering, separating, ______, and insulating
a. covering b. suppressing c. reacting d. dissolving