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HESI LPN · HESI LPN Pharmacology · HESI Drugs affecting the respiratory system edapt Quizlet

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Inhaled sodium cromoglicate:

A. Is effective in alleviating an acute episode of allergic asthma

B. Has no benefit in preventing exercise-induced bronchospasm

C. Prevents antigen-antibody combination

D. Inhibits mediator release from mast cells

Expert Explanatory Rationale

Correct Answer: Inhibits mediator release from mast cells

Question 2 of 5

A 22-year-old female patient has just arrived to the emergency department with acute bronchospasm. Which of the following medications would you recommend?

A. Albuterol (Proventil)

B. Racemic epinephrine

C. Cromolyn sodium (Intal)

D. Acetylcysteine (Mucomyst)

Expert Explanatory Rationale

Correct Answer: Albuterol (Proventil)

Question 3 of 5

A 10 year old child suffers from exercise induced asthma: Which is the most suitable first line drug for regular prophylactic therapy?

A. Oral salbutamol

B. Oral theophylline

C. Inhaled sodium cromoglycate

D. Inhaled beclomethasone dipropionate

Expert Explanatory Rationale

Correct Answer: Inhaled sodium cromoglycate

Question 4 of 5

A patient suffering status asthmatics presents in the emergency department. Even large parenteral doses of a selective $B_2$ agonist fail to dilate the airways adequately; rather, they cause dangerous degrees of tachycardia. Which of the following pharmacologic interventions or approaches is most likely to control the acute symptoms and restore the bronchodilator efficacy of the adrenergic drug?

A. Add inhaled cromolyn

B. Give a parenteral corticosteroid

C. Give parenteral diphenhydramine

D. Switch to epinephrine

Expert Explanatory Rationale

Correct Answer: Give a parenteral corticosteroid

Question 5 of 5

A patient with fluid overload was just given a dose of furosemide via IV. Afterwards, the patient displayed an arrhythmia on the EKG that was not there before the dose was given. Which of the following would you recommend at this time?

A. Defibrillate the patient

B. Administer another dose of furosemide

C. Administer a dose of epinephrine

D. Check the patient's potassium level

Expert Explanatory Rationale

Correct Answer: Check the patient's potassium level

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