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)
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Incorrect. Spacers can be beneficial for both children and adults, depending on their ability to use the inhaler effectively.
B) Incorrect. A spacer does not deliver medication directly into the bloodstream but optimizes delivery to the lungs.
C) Correct. Using a spacer reduces the risk of side effects, such as oral thrush, associated with some inhaled medications by ensuring more targeted delivery to the lungs.
D) Incorrect. Spacers are designed to make inhalers easier to use correctly, not more challenging.
Correct Answer is D
Explanation
A) Incorrect. An ECG is used to assess heart function, not lung function.
B) Incorrect. MRI is a diagnostic imaging technique used to visualize internal structures but is not typically used for asthma diagnosis.
C) Incorrect. Chest X-rays may be performed to rule out other conditions but are not a primary test for asthma diagnosis.
D) Correct. Spirometry is a common lung function test used to assess airflow and determine the presence and severity of asthma.
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