Pulmonary Diagnostic Testing | Baptist Health South Florida http://bapth.lt/1YDxAap
Skip Ribbon Commands Skip to main content

Pulmonary Diagnostic Testing


How Well Your Lungs Perform
Licensed respiratory therapists perform the following tests, which your physician may prescribe to help diagnose your condition:

  • Arterial Blood Gases (ABG)
    A test for direct measurement of PH, PCO2, PO2, oxygen saturation, as well as other lung function parameters.  For this test, a small sample of blood is drawn directly out of an artery. Most routine blood tests use blood that is drawn out of a vein, so this test is a little different. The artery that is sampled most often is the radial artery in your wrist, the one that you can feel when you take your pulse. The test takes only a few minutes, and results are faxed immediately to your physician's office.

  • Flow Volume Loop (FVL)
    A basic test to check for obstructive lung disorders such as asthma and emphysema, or restrictive disorders such as pulmonary fibrosis. This test is done to measure how forcefully you are able to inhale and exhale when you are trying to take as large a breath as possible. This test is also required to meet Medicare guidelines for Pulmonary Rehabilitation and usually takes about 20 minutes.

  • Complete Pulmonary Function Test (CPFT) includes:

  • Flow Volume Loop (FVL)

  • Slow Vital Capacity (SVC)
    Measures the total amount of air that can be exhaled slowly after a deep breath. In certain lung diseases this measurement is quite different than results shown in the Flow Volume Loop (FVL) test.

  • Maximum Voluntary Ventilation (MVV)
    Measures largest volume of air that can be breathed per minute by voluntary effort.

  • Single Breath Diffusion Capacity (DLCO)
    Tests lungs’ efficiency at delivering oxygen and other gases to your bloodstream. A small quantity of carbon monoxide (too small to do any harm) is breathed in and the amount you breathe out will be measured and compared. The ability to absorb carbon monoxide into the blood is representative of your ability to absorb other gases such as oxygen.

  • Thoracic Gas Volume (TGV) and Airway Resistance (RAW)
    Calculate the amount of air you are breathing. You will sit inside an airtight cubicle that looks like a phone booth and breathe in and out through a mouthpiece. The air pressure inside the box will change with your breathing because your chest expands and contracts while you breathe. This pressure change can be measured and used to calculate the amount of air you must be breathing.


    Baptist Hospital

    8900 North Kendall Drive
    Miami, Florida 33176​

    Doctors Hospital

    5000 University Drive
    Coral Gables, Florida 33146

    Homestead Hospital

    975 Baptist Way (Campbell Drive and S.W. 147 Avenue)
    Homestead, Florida 33033

    Mariners Hospital

    91500 Overseas Highway
    (MM 91.5)
    Tavernier, Florida 33070

    South Miami Hospital

    6200 SW 73 Street
    South Miami, Florida 33143​

    West Kendall Baptist Hospital

    9555 SW 162 Avenue

    Miami, Florida 33196​​​

    Baptist Children's Hospital

    8900 North Kendall Drive
    Miami, Florida 33176​