A nurse is educating a client about the diagnostic evaluation of cystic fibrosis (CF). What test is commonly used to screen for CF in newborns shortly after birth?
Sweat chloride test
Chest X-ray
Pulmonary function test
Complete blood count (CBC)
The Correct Answer is A
A) Correct. The sweat chloride test is commonly used for newborn screening for CF. Elevated sweat chloride levels are indicative of CF.
B) Incorrect. Chest X-rays may be used to assess lung changes in individuals with CF but are not a primary diagnostic test, especially in newborns.
C) Incorrect. Pulmonary function tests are used to evaluate lung function but are not typically performed as part of newborn screening for CF.
D) Incorrect. A complete blood count (CBC) is a general blood test and is not specific for CF diagnosis.
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Related Questions
Correct Answer is D
Explanation
A) Incorrect. Genetic testing is used to confirm the presence of CF gene mutations but is not a measure of lung function.
B) Incorrect. The sweat chloride test is used for CF diagnosis and may not be performed regularly to monitor lung function.
C) Incorrect. Chest X-rays may be used to assess lung changes in individuals with CF, but they do not directly measure lung function.
D) Correct. Pulmonary function tests are commonly performed to assess lung function, monitor disease progression, and guide treatment in individuals with CF.
Correct Answer is A
Explanation
A) Correct. The sweat chloride test is commonly used for newborn screening for CF. Elevated sweat chloride levels are indicative of CF.
B) Incorrect. Chest X-rays may be used to assess lung changes in individuals with CF but are not a primary diagnostic test, especially in newborns.
C) Incorrect. Pulmonary function tests are used to evaluate lung function but are not typically performed as part of newborn screening for CF.
D) Incorrect. A complete blood count (CBC) is a general blood test and is not specific for CF diagnosis.
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