ATI RN
ATI Nur 180 Pharmacology quiz Questions
Extract:
Question 1 of 5
The nurse is preparing to administer albuterol to a client experiencing an acute asthma attack. Which medication on the client's medical record is a direct contraindication to albuterol administration?
Correct Answer: A
Rationale: Beta-blockers antagonize the bronchodilatory effects of albuterol, a beta-agonist, potentially worsening asthma symptoms.
Question 2 of 5
A client diagnosed with allergic rhinitis is prescribed an antihistamine to assist with symptoms. Which of the following medications below would be considered a second-generation antihistamine?
Correct Answer: A
Rationale: Cetirizine is a second-generation antihistamine, designed to be less sedating than first-generation antihistamines like chlorpheniramine and diphenhydramine.
Question 3 of 5
A client who suffers from severe persistent allergic asthma is prescribed omalizumab (Xolair). Which statement below correctly describes the mechanism of action associated with omalizumab (Xolair)?
Correct Answer: C
Rationale: Omalizumab binds to immunoglobulin E (IgE), preventing it from attaching to mast cells and basophils, thus reducing the release of allergic mediators that contribute to asthma attacks.
Question 4 of 5
When caring for a client with an upper respiratory infection (URI), the nurse is notified the client is taking guaifenesin (Mucinex). What is the mechanism of action of guaifenesin (Mucinex)?
Correct Answer: D
Rationale: Guaifenesin acts as an expectorant, promoting the clearance of mucus from the airways by loosening bronchial secretions. This facilitates easier expectoration of mucus, helping to relieve chest congestion associated with upper respiratory infections.
Question 5 of 5
The nurse is caring for a client currently taking oxymetazoline. Which of the following statements should the nurse include regarding oxymetazoline?
Correct Answer: A
Rationale: Oxymetazoline is a topical nasal decongestant that can lead to rebound congestion if used for more than three consecutive days. This condition, known as rhinitis medicamentosa, can worsen nasal congestion rather than alleviate it, making it crucial for clients to adhere to this guideline.