Chapter 20

Front

The signs and symptoms of an allergic reaction are caused by the release of

Back

both histamine and leukotrienes

Front

The negative effects associated with anaphylactic shock are the result of

Back

vasodilation and bronchoconstriction

Front

You are called to a local baseball park for a 23-year-old man with difficulty breathing after eating peanuts. He has widespread urticaria, tachycardia, and a BP of 90/60 mm Hg. You can hear him wheezing. You should be MOST suspicious of a(n):

Back

anaphylactic reaction

Front

What is a wheal?

Back

A raised, swollen, well-defined area on the skin.

Front

You are treating a woman who was stung numerous times by hornets. On assessment, you note that some of the stingers are still embedded in her skin. You should:

Back

scrape the stingers from her skin

Front

A young male is experiencing signs and symptoms of anaphylactic shock after being stung by a scorpion. His level of consciousness is diminished, his breathing is severely labored, you can hear inspiratory stridor, and his face is cyanotic. The patient has a prescribed epinephrine auto-injector. What should you do first?

Back

Provide ventilatory assistance with a bag-valve mask

Front

The MOST reliable indicator of upper airway swelling during a severe allergic reaction is: stridor, anxiety, cyanosis, wheezing

Back

stridor

Front

The most common trigger of anaphylaxis is: plants, chemicals, medications, food

Back

food

Front

The adult EpiPen system delivers _____ mg of epinephrine, and the infant–child system delivers _____ mg

Back

0.3 mg for adults, 0.15 mg for infants-children

Front

When administering epinephrine by auto-injector, the EMT should hold the injector in place for:

Back

10 seconds