A sweat chloride test is considered abnormal when the chloride level is above

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Neonatal/Pediatric Specialist Test. Use flashcards and multiple-choice questions with hints and explanations. Ready yourself for the exam!

Multiple Choice

A sweat chloride test is considered abnormal when the chloride level is above

Explanation:
The key idea is the threshold used to define an abnormal sweat chloride result in cystic fibrosis. In CF, defective CFTR function leads to high chloride in sweat because chloride reabsorption in the sweat ducts is reduced. Clinically, sweat chloride values are interpreted as: typically less than 40 mmol/L is normal, 40–59 mmol/L is indeterminate, and 60 mmol/L or higher is abnormal and supportive of CF in the right clinical context. So the level at which the result is considered abnormal is 60 mmol/L (or higher). An extremely high value like 80 would also be abnormal, but 60 is the established cutoff.

The key idea is the threshold used to define an abnormal sweat chloride result in cystic fibrosis. In CF, defective CFTR function leads to high chloride in sweat because chloride reabsorption in the sweat ducts is reduced. Clinically, sweat chloride values are interpreted as: typically less than 40 mmol/L is normal, 40–59 mmol/L is indeterminate, and 60 mmol/L or higher is abnormal and supportive of CF in the right clinical context. So the level at which the result is considered abnormal is 60 mmol/L (or higher). An extremely high value like 80 would also be abnormal, but 60 is the established cutoff.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy