A nurse is teaching a client who has a new prescription for cromolyn. Which of the following information should the nurse include in the teaching?
"Cromolyn will assist with dilating the bronchioles in your lungs."
"Cromolyn should take effect within 5 minutes."
"Cromolyn should be administered 1 hour after exercising."
"Cromolyn is used to prevent your condition from occurring."
The Correct Answer is D
A. "Cromolyn will assist with dilating the bronchioles in your lungs.": Cromolyn is not a bronchodilator and does not relax airway smooth muscles. Its primary action is to stabilize mast cells and prevent the release of inflammatory mediators.
B. "Cromolyn should take effect within 5 minutes.": Cromolyn works as a preventive medication and requires consistent use over time. It does not provide rapid relief of acute bronchospasm or asthma attacks.
C. "Cromolyn should be administered 1 hour after exercising.": For exercise-induced asthma, cromolyn should be administered 10–15 minutes before exercising, not after, to prevent symptoms. Timing is important for prophylactic effectiveness.
D. "Cromolyn is used to prevent your condition from occurring.": Cromolyn is a mast cell stabilizer used as a preventive therapy to reduce inflammation and prevent asthma attacks. It is most effective when taken regularly or before known triggers.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Obtain a prescription for furosemide: Administering a diuretic like furosemide could worsen hypovolemia or kidney injury if the client is already oliguric. It is not the first action when potassium is accumulating due to impaired renal excretion.
B. Prepare the client for a urine culture and sensitivity: While a UTI could contribute to kidney dysfunction, the immediate concern is elevated potassium in the context of severely reduced urine output, making infection screening secondary.
C. Discontinue the potassium infusion: The client has oliguria and elevated BUN, indicating impaired renal function. Continuing potassium infusion could lead to hyperkalemia and life-threatening cardiac complications. Stopping the infusion is the priority action to prevent toxicity.
D. Perform a bladder scan: A bladder scan assesses for urinary retention, which could contribute to low urine output. However, the elevated BUN suggests intrinsic kidney impairment, making discontinuing potassium more urgent than assessing retention.
Correct Answer is D
Explanation
A. Vancomycin: Vancomycin is a glycopeptide antibiotic and does not share cross-reactivity with penicillin. It can be safely administered to clients with a penicillin allergy.
B. Clarithromycin: Clarithromycin is a macrolide antibiotic. It has a different chemical structure from penicillin and is not contraindicated in clients with penicillin allergies.
C. Metronidazole: Metronidazole is an antibiotic used primarily for anaerobic bacterial and protozoal infections. It is unrelated to penicillin and can be given safely to clients with penicillin hypersensitivity.
D. Ceftriaxone: Ceftriaxone is a cephalosporin, which is chemically related to penicillin. Clients with a history of anaphylactic reactions to penicillin have an increased risk of severe allergic reactions to cephalosporins, making ceftriaxone contraindicated in this case.
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