Practice Question
Which of the following tests is used to grade COPD?
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Correct Answer:
Pulmonary function tests (PFTs)
Rationale:
✦ Pulmonary function tests (PFTs), specifically spirometry, are the gold standard for diagnosing and grading the severity of Chronic Obstructive Pulmonary Disease (COPD).
✦ The most important measurement is the FEV1/FVC ratio; a value less than 70% confirms airflow limitation consistent with COPD.
✦ The severity of COPD is then graded using the percent predicted FEV1 (mild, moderate, severe, very severe).
✦ Chest X-ray may help rule out other conditions (e.g., pneumonia, lung cancer) but it does not grade COPD severity.
✦ CBC is used to check for polycythemia (secondary to chronic hypoxemia) but not for grading COPD.
✦ ECG may detect right-sided heart strain from cor pulmonale but is not used in COPD grading.
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This question is from Custom 2201 Unit 1 Exam 2025 which contains 53 questions.
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Question Details
- Category: RN Nursing Exam(s)
- Subcategory: ATI Exam(s)
- Domain: RN ATI Adult Health
- Answer Choices: 4