The primary function of red blood cells is, to restore broken skin. and stop bleeding.
Answer:
Your doctor will use a stethoscope to listen to both heart and lung sounds and may order some or all of the following tests. The most effective and common method for diagnosing COPD is spirometry. It’s also known as a pulmonary function test or PFT. This easy, painless test measures lung function and capacity.
Explanation: