What is a pulmonary function test?

The effectiveness of the lungs is determined by a pulmonary function test. The test evaluates lung volume, capacity, gas exchange, and rate of flow, as well as other lung-related characteristics. Your doctor may be able to identify and treat some lung diseases based on the results.

How are pulmonary function tests performed?

Pulmonary function tests can be performed in two ways, depending on the information your doctor needs. In some cases, your doctor may request both tests since they measure different things. To evaluate your breathing, your doctor may use a spirometer (a device with a mouthpiece) or have you stand inside an air-tight box that resembles a telephone booth.

What does a pulmonary function test measure?

A pulmonary function test evaluates several elements of lung health. Here are a few examples:The volume of the lungs when they are entirely full of air is known as total lung capacity.The amount of air you can forcefully expel once your lungs have been completely filled is known as forced vital capacity.After you've expelled as much as you can, the amount of air left in your lungs.Functional residual capacity is the quantity of air left in your lungs after you typically exhale.

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Quest Diagnostics

8901 FM 1960, Humble, TX 773388901 FM 1960

Open12:00 pm

Mon 6:30 am - 5:30 pm
Tue 6:30 am - 5:30 pm
Wed 6:30 am - 5:30 pm
Thu 6:30 am - 5:30 pm
Fri 6:30 am - 5:30 pm
Sat 8:00 am - 12:00 pm
SunClosed

4.17(477 reviews)

I would 100% recommend this company to anyone wanting to check their health status. The process was incredibly easy and done through certified labs. The results are frequently back by the next day.

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Quest Diagnostics

7777 Southwest Fwy, Houston, TX 770747777 Southwest Fwy

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Mon 7:30 am - 12:30 pm
Tue 7:30 am - 12:30 pm
Wed 7:30 am - 12:30 pm
Thu 7:30 am - 12:30 pm
Fri 7:30 am - 12:30 pm
SatClosed
SunClosed

4.24(447 reviews)

I would 100% recommend this company to anyone wanting to check their health status. The process was incredibly easy and done through certified labs. The results are frequently back by the next day.

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Quest Diagnostics

7737 Southwest Fwy, Houston, TX 770747737 Southwest Fwy

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Mon 8:00 am - 5:30 pm
Tue 8:00 am - 5:30 pm
Wed 8:00 am - 5:30 pm
Thu 8:00 am - 5:30 pm
Fri 8:00 am - 5:30 pm
SatClosed
SunClosed

4.43(516 reviews)

I highly recommend for anyone thinking of getting tested. From start to finish the whole process was hassle free and and very professional. I had my results very quickly and discreetly couldn't be happier with the service.

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Quest Diagnostics

8200 Wednesbury Ln, Houston, TX 770748200 Wednesbury Ln

Open12:00 pm

Mon 7:00 am - 4:00 pm
Tue 7:00 am - 4:00 pm
Wed 7:00 am - 4:00 pm
Thu 7:00 am - 4:00 pm
Fri 7:00 am - 4:00 pm
Sat 8:00 am - 12:00 pm
SunClosed

4.49(560 reviews)

Excellent customer service. Knowledgeably answered all questions. Appointment and billing were fast. Testing next day was on time and professional. Results available within 24 hours. Highly recommend.

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Quest Diagnostics

23824 US-59, Houston, TX 7733923824 US-59

Open12:00 pm

Mon 6:30 am - 5:00 pm
Tue 6:30 am - 5:00 pm
Wed 6:30 am - 5:00 pm
Thu 6:30 am - 5:00 pm
Fri 6:30 am - 5:00 pm
Sat 8:00 am - 12:00 pm
SunClosed

4.42(404 reviews)

A great experience for something I had a lot of anxiety about. Had no wait time or issues at the testing center/lab. Had blood drawn at 3pm and had results by email at 9am the next morning.

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Quest Diagnostics

925 Gessner Rd, Houston, TX 77024925 Gessner Rd

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Mon 7:30 am - 5:00 pm
Tue 7:30 am - 5:00 pm
Wed 7:30 am - 5:00 pm
Thu 7:30 am - 5:00 pm
Fri 7:30 am - 5:00 pm
SatClosed
SunClosed

4.55(560 reviews)

I would 100% recommend this company to anyone wanting to check their health status. The process was incredibly easy and done through certified labs. The results are frequently back by the next day.

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Quest Diagnostics

915 Gessner Rd, Houston, TX 77024915 Gessner Rd

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Mon 7:00 am - 5:30 pm
Tue 7:00 am - 5:30 pm
Wed 7:00 am - 5:30 pm
Thu 7:00 am - 5:30 pm
Fri 7:00 am - 5:30 pm
SatClosed
SunClosed

4.28(419 reviews)

I came in one day without an appoint and waited two hours as a walk-in before I had to leave without being tested. I made an appointment through Quest Lab Testing for the next day, showed up on time, got tested easily and was on my way in 15-20 minutes. Staff is friendly and helpful.

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Quest Diagnostics

12385 Kingsride Ln, Houston, TX 7702412385 Kingsride Ln

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Mon 7:00 am - 4:00 pm
Tue 7:00 am - 4:00 pm
Wed 7:00 am - 4:00 pm
Thu 7:00 am - 4:00 pm
Fri 7:00 am - 4:00 pm
SatClosed
SunClosed

4.48(401 reviews)

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Quest Diagnostics

10837 Katy Fwy, Houston, TX 7707910837 Katy Fwy

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Mon 8:30 am - 5:00 pm
Tue 8:30 am - 5:00 pm
Wed 8:30 am - 5:00 pm
Thu 8:30 am - 5:00 pm
Fri 8:30 am - 5:00 pm
SatClosed
SunClosed

4.22(579 reviews)

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Quest Diagnostics

1140 Business Center Dr, Houston, TX 770431140 Business Center Dr

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Mon 7:30 am - 5:30 pm
Tue 7:30 am - 5:30 pm
Wed 7:30 am - 5:30 pm
Thu 7:30 am - 5:30 pm
Fri 7:30 am - 5:30 pm
SatClosed
SunClosed

4.26(438 reviews)

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Quest Diagnostics

930 Farm to Market 1960 Rd E, Houston, TX 77073930 Farm to Market 1960 Rd E

Open12:00 pm

Mon 7:30 am - 4:00 pm
Tue 7:30 am - 4:00 pm
Wed 7:30 am - 4:00 pm
Thu 7:30 am - 4:00 pm
Fri 7:30 am - 4:00 pm
Sat 8:00 am - 12:00 pm
SunClosed

4.56(464 reviews)

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Quest Diagnostics

12121 Richmond Ave., Houston, TX 7708212121 Richmond Ave.

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Mon 7:00 am - 5:30 pm
Tue 7:00 am - 5:30 pm
Wed 7:00 am - 5:30 pm
Thu 7:00 am - 5:30 pm
Fri 7:00 am - 5:30 pm
SatClosed
SunClosed

4.44(417 reviews)

I thought it was extremely easy to book a lab test appointment with Quest. Getting the test done was simple and so was the getting the results! Great job putting together something so user friendly.

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