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Spirometry During this painless test, a technician will ask the patient to take a deep breath in. Then, they will blow as hard as they can into a tube connected to a small machine. The machine is called a spirometer. The machine measures how much air the patient breathes out. It also measures how fast the air is blown out.
Other Tests
•A chest
x-ray or chest CT scan. These tests produce images of the structures
inside the patients chest, such as the heart, lungs, and blood
vessels.The pictures can show signs of COPD. They also may reveal
another condition
that is
causing the symptoms.
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•An
arterial blood gas test. This blood test measures the oxygen level in
the blood using a sample of blood taken from an artery. The test can
help find out how severe COPD is and whether
the patient
may need
oxygen therapy.
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