EMT Chapter 21 Allergy and Anaphylaxis
Pre and Post Test 2025-2026
A 38-year-old woman was bitten by fire ants while at the park. Your primary assessment reveals that she is
semiconscious; has labored breathing; and has a rapid, thready pulse. She has a red rash on her entire body,
and her face is swollen. You should:
A. perform a rapid secondary assessment.
B. assist her ventilations with 100% oxygen.
C. locate the area where the fire ants bit her.
D. place her supine with her legs elevated. - CORRECT ANSWER -B. assist her ventilations with 100%
oxygen.
Because the stinger of a honeybee remains in the wound following a sting:
A. the toxicity of the venom decreases within 10 minutes.
B. the stinger should quickly be removed with tweezers.
C. it can continue to inject venom for up to 20 minutes.
D. the body's immune system deactivates the bee's venom. - CORRECT ANSWER -C. it can continue to
inject venom for up to 20 minutes.
The adult Epi auto-injector delivers ______ mg of Epinephrine, and the infant-child auto-injector _____ mg.
A. 0.03; 0.3
B. 0.3; 0.15
, C. 0.01; 0.1
D. 0.1; 0.01 - CORRECT ANSWER -B. 0.3; 0.15
You have administered one dose of epinephrine to a 40-year-old female to teat an allergic reaction that she
developed after being stung by a scorpion. Your assessment reveals that she is still having difficulty breathing ,
has a decreasing mental status, and has a BP of 80/50 mm Hg. You should:
A. administer a nebulized bronchodilator to improve the status of her breathing.
B. request permission from medical control to give another dose of epinephrine.
C. crush up an antihistamine tablet and place it in between her cheek and gum.
D. monitor her en route to the hospital and call medical control if she worsens. - CORRECT ANSWER -B.
request permission from medical control to give another dose of epinephrine.
A 50-year-old male was stung by honeybee approximately 15 minutes ago. He presents with respiratory
distress, facial swelling, and hypotension. After placing him on oxygen and administering his epinephrine via
auto-injector, you note that his breathing has improved. Additionally, his facial swelling is resolving and his
blood pressure is stable. Your next action should be to:
A. reassess his breathing and BP in 15 minutes.
B. record the time and dose of the injection and transport promptly.
C. visualize his airway to assess for oropharyngeal swelling.
D. notify medical control of the PTs response to your treatment. - CORRECT ANSWER -B. record the
time and dose of the injection and transport promptly.
Which of the following medication blocks the release of histamines?
A. Albuterol (Ventolin)
Pre and Post Test 2025-2026
A 38-year-old woman was bitten by fire ants while at the park. Your primary assessment reveals that she is
semiconscious; has labored breathing; and has a rapid, thready pulse. She has a red rash on her entire body,
and her face is swollen. You should:
A. perform a rapid secondary assessment.
B. assist her ventilations with 100% oxygen.
C. locate the area where the fire ants bit her.
D. place her supine with her legs elevated. - CORRECT ANSWER -B. assist her ventilations with 100%
oxygen.
Because the stinger of a honeybee remains in the wound following a sting:
A. the toxicity of the venom decreases within 10 minutes.
B. the stinger should quickly be removed with tweezers.
C. it can continue to inject venom for up to 20 minutes.
D. the body's immune system deactivates the bee's venom. - CORRECT ANSWER -C. it can continue to
inject venom for up to 20 minutes.
The adult Epi auto-injector delivers ______ mg of Epinephrine, and the infant-child auto-injector _____ mg.
A. 0.03; 0.3
B. 0.3; 0.15
, C. 0.01; 0.1
D. 0.1; 0.01 - CORRECT ANSWER -B. 0.3; 0.15
You have administered one dose of epinephrine to a 40-year-old female to teat an allergic reaction that she
developed after being stung by a scorpion. Your assessment reveals that she is still having difficulty breathing ,
has a decreasing mental status, and has a BP of 80/50 mm Hg. You should:
A. administer a nebulized bronchodilator to improve the status of her breathing.
B. request permission from medical control to give another dose of epinephrine.
C. crush up an antihistamine tablet and place it in between her cheek and gum.
D. monitor her en route to the hospital and call medical control if she worsens. - CORRECT ANSWER -B.
request permission from medical control to give another dose of epinephrine.
A 50-year-old male was stung by honeybee approximately 15 minutes ago. He presents with respiratory
distress, facial swelling, and hypotension. After placing him on oxygen and administering his epinephrine via
auto-injector, you note that his breathing has improved. Additionally, his facial swelling is resolving and his
blood pressure is stable. Your next action should be to:
A. reassess his breathing and BP in 15 minutes.
B. record the time and dose of the injection and transport promptly.
C. visualize his airway to assess for oropharyngeal swelling.
D. notify medical control of the PTs response to your treatment. - CORRECT ANSWER -B. record the
time and dose of the injection and transport promptly.
Which of the following medication blocks the release of histamines?
A. Albuterol (Ventolin)
