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Pulmonary & Critical Care Center

Meet Our Pulmonologists:


Mark Allen Co, M.D.
9 Medical Parkway
Plaza 4, Suite 301
Dallas, TX 75234


Mustafa Awili, M.D.
2704 North Galloway Avenue
Suite 100
Mesquite, TX 75150

Adeel Shibli, M.D.
2704 North Galloway Avenue
Suite 100
Mesquite, TX 75150

Reliable Pulmonary Care in Dallas and Mesquite

The DMPG Pulmonary Center offers evaluation and treatment of pulmonary diseases such as asthma, acute and chronic pulmonary emboli, chronic bronchitis, COPD/emphysema, lung cancer, pulmonary vascular diseases and pulmonary nodules. In addition, our board-certified specialist offers expertise in a variety of sleep disorders such as obstructive sleep apnea, narcolepsy, insomnia, and restless legs syndrome.

Lung Function Tests and Breathing Evaluations

Lung function tests include breathing tests and tests that measure the oxygen level in your blood.

The breathing tests most often used are:

  • Spirometry: This test measures how much air you can breathe in and out. It also measures how fast you can blow air out.
  • Body plethysmography: This test measures how much air is present in your lungs when you take a deep breath. It also measures how much air remains in your lungs after you breathe out fully.
  • Lung diffusion capacity: This test measures how well oxygen passes from your lungs to your bloodstream.
  • Pulmonary function test

These tests may not show what's causing breathing problems, however, they can show when they are present. You may be required to take other tests as well, such as an exercise stress test. This test measures how well your lungs and heart work while you exercise on a treadmill or bicycle.

Two other tests that measure the oxygen level in your blood are pulse oximetry and arterial blood gas tests. These tests are also called blood oxygen tests. Pulse oximetry measures your blood oxygen level using a special light. For an arterial blood gas test, your doctor takes a sample of your blood, usually from an artery in your wrist. The sample is sent to a laboratory, where its oxygen level is measured.

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