A nurse is educating a client about the diagnostic evaluation of asthma. Which test is commonly used to measure lung function and assess the severity of asthma?
Electrocardiogram (ECG)
Magnetic resonance imaging (MRI)
Chest X-ray
Spirometry
The Correct Answer is D
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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Related Questions
Correct Answer is B
Explanation
A) Incorrect. Measuring oxygen levels in the blood is typically done using pulse oximetry or arterial blood gas tests, not a bronchial provocation test.
B) Correct. A bronchial provocation test evaluates how the airways respond to substances that can trigger bronchoconstriction, helping to diagnose asthma.
C) Incorrect. Visualizing airways using a special camera is usually done through bronchoscopy, not a bronchial provocation test.
D) Incorrect. Checking for specific antibodies related to asthma is not a primary diagnostic test for asthma; it is more commonly associated with allergies.
Correct Answer is C
Explanation
A) Incorrect. A decrease in peak flow measurements typically indicates worsening asthma, not improved control.
B) Incorrect. While an increase in rescue inhaler use may be necessary during an exacerbation, it does not address the underlying issue of worsening asthma.
C) Correct. A decrease in peak flow measurements is a sign of declining lung function, suggesting that asthma may be worsening. Following the asthma action plan is essential in this situation.
D) Incorrect. Peak flow measurements are a valuable tool in asthma management and are related to monitoring and controlling asthma symptoms.
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