Pulmonary Function Test Specialist

Jacinto Medical Group

Family Practice & Neurologists located in Baytown, TX & La Porte, TX

Your lungs are your life, as they take in and deliver the oxygen you need for survival. If your lungs aren’t doing their job correctly, the effects can be serious and widespread. To get to the bottom of your problem, the team at Jacinto Medical Group provides pulmonary function tests that measure how your lungs are working. If you want to get on the road to breathing easier, call one of the office locations in Baytown or La Porte, Texas, or use the online scheduling tool to set up an appointment.

Pulmonary Function Test

Why would I need a pulmonary function test?

If you’re struggling to get the oxygen you need, one of the first steps is to determine what, if anything, is happening in your lungs. The doctors at Jacinto Medical Group turn to a pulmonary function test to evaluate your lung function and its ability to take in and deliver oxygen to your body.

What conditions can a pulmonary function test identify?

There are many reasons why your doctor at Jacinto Medical Group may order a pulmonary lung function test, from diagnosing a problem to ensuring your lung function before surgery. More often than not, doctors order pulmonary function tests to find out whether any of the following conditions are the cause of your breathing problems:

  • Asthma and allergies
  • COPD, or chronic obstructive pulmonary disease
  • Exposure to toxins
  • Respiratory infections
  • Cancer
  • Fibrosis
  • Bronchitis

There are many other conditions that can affect how well your lungs function, but these represent the most common causes.

What happens during a pulmonary function test?

A pulmonary function test is noninvasive and involves several evaluations, including:


This test determines how much air you’re taking in and breathing out by using a simple mouthpiece.


This evaluation measures the amount of gas in your lungs so your doctor can determine your lung volume.

Diffusion capacity test

Your lungs contain small sacs called alveoli and this test measures how well they’re working. Using different gases, your doctor measures how you’re taking in and exhaling them.

How do I prepare for a pulmonary function test?

There’s not much you need to do to prepare for a pulmonary function test except perhaps avoid inhalers or other medications that may mask a problem in your lungs. Your doctor gives you full instructions on the use of your medications before your test.

The pulmonary team at Jacinto Medical Group may also ask you to avoid caffeine and large meals before the test. As well, you should steer clear of strenuous activities and smoking in the hours leading up to your pulmonary function test.

If you want to breathe easier, your first step is a pulmonary lung function test. Call Jacinto Medical Group to get started or use the online scheduling button to set up an appointment.