A client with asthma is undergoing diagnostic testing. Which laboratory test is commonly used to measure inflammation in the airways and help diagnose asthma?

Complete blood count (CBC)

Serum cholesterol level

Urinalysis

Erythrocyte sedimentation rate (ESR)

Answer and Explanation

The Correct Answer is A

A) Correct. A CBC can detect elevated levels of white blood cells (eosinophils) associated with airway inflammation in asthma.

B) Incorrect. Serum cholesterol levels are not a primary diagnostic test for asthma.

C) Incorrect. Urinalysis is used to assess kidney function and detect abnormalities in the urine, not for asthma diagnosis.

D) Incorrect. ESR is a nonspecific test used to detect inflammation in the body but is not specific to asthma diagnosis.

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Correct Answer is D

Explanation

A) Incorrect. Eosinophils do not release hormones that relax airway muscles.

B) Incorrect. Eosinophils are not primarily involved in antibody production in asthma.

C) Incorrect. Eosinophils are not responsible for clearing excess mucus from the airways.

D) Correct. Eosinophils are white blood cells that contribute to inflammation and airway damage in asthma by releasing inflammatory substances.

A. "You should use your rescue inhaler once a day to prevent symptoms." B. "Use it only when you have difficulty breathing during exercise." C. "Use your rescue inhaler when you experience asthma symptoms or as directed by your healthcare provider." D. "It's best to use your rescue inhaler before bedtime for a good night's sleep."

Correct Answer is C

Explanation

A) Incorrect. Rescue inhalers are typically not used as a daily preventive measure but are reserved for acute symptom relief.

B) Incorrect. While exercise-induced asthma is a valid reason to use a rescue inhaler, it should also be used when experiencing other asthma symptoms.

C) Correct. Rescue inhalers are meant for quick relief during asthma symptoms or exacerbations, and their use should be guided by symptoms or healthcare provider instructions.

D) Incorrect. There is no specific benefit to using a rescue inhaler before bedtime unless asthma symptoms are present at that time.

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A client with asthma is undergoing diagnostic testing. Which laboratory test is commonly used to measure inflammation in the airways and help diagnose asthma?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is discussing the role of eosinophils in asthma with a client. How should the nurse explain the involvement of eosinophils in asthma?

Correct Answer is D

Explanation

A nurse is providing asthma education to a client. The client asks, "When should I use my rescue inhaler?" What is the nurse's best response?

Correct Answer is C

Explanation

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