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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10 instant-book locations

Labcorp

Open until 3:30 pm

Mon 7:30 am - 3:30 pm
Tue 7:30 am - 3:30 pm
Wed 7:30 am - 3:30 pm
Thu 7:30 am - 3:30 pm
Fri 7:30 am - 3:30 pm
SatClosed
SunClosed

1367 E 2nd St, Benicia, CA 945101367 E 2nd St

4.32(503 reviews)

Lab testing

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 Labcorp 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.

Labcorp at Walgreens

Open until 12:00 pm

Mon 8:00 am - 12:00 pm
Tue 8:00 am - 12:00 pm
Wed 8:00 am - 12:00 pm
Thu 8:00 am - 12:00 pm
Fri 8:00 am - 12:00 pm
SatClosed
SunClosed

342 W Calaveras Blvd, Milpitas, CA 95035342 W Calaveras Blvd

4.57(528 reviews)

Lab testing

I was very surprised with my experience here. My appointment was made very quickly. I was seen in a very short period of time. My test results came back in a very timely manner. I was able to speak with a doctor soon after and was taking care of. I was very satisfied with the experience I had here. I definitely recommend using them for any issues you have or any questions you may have.

Labcorp

Open until 3:30 pm

Mon 7:00 am - 3:30 pm
Tue 7:00 am - 3:30 pm
Wed 7:00 am - 3:30 pm
Thu 7:00 am - 3:30 pm
Fri 7:00 am - 3:30 pm
SatClosed
SunClosed

5161 Clayton Rd, Concord, CA 945215161 Clayton Rd

4.41(526 reviews)

Lab testing

Great discreet service, scheduled my visit and paid for for the test online not in Showed up at lab, checked in and was seen within minutes. Blood and urine were collected, test results came back quickly within 2 days because I did my test on a Friday. Quick, easy and cheap. Didn't have to wait for a visit to my PCP, and then get referral to lab.

Quest Diagnostics

Open until 4:00 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 7:00 am - 11:00 am
SunClosed

649 E Calaveras Blvd, Milpitas, CA 95035649 E Calaveras Blvd

4.12(562 reviews)

Lab testing

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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.

Labcorp

Open until 3:30 pm

Mon 7:00 am - 3:30 pm
Tue 7:00 am - 3:30 pm
Wed 7:00 am - 3:30 pm
Thu 7:00 am - 3:30 pm
Fri 7:00 am - 3:30 pm
SatClosed
SunClosed

20555 Prospect Rd, Cupertino, CA 9501420555 Prospect Rd

4.24(567 reviews)

Lab testing

AFC Urgent Care, Santa Clara

AFC Urgent Care

Open until 8:00 pm

Mon 8:00 am - 8:00 pm
Tue 8:00 am - 8:00 pm
Wed 8:00 am - 8:00 pm
Thu 8:00 am - 8:00 pm
Fri 8:00 am - 8:00 pm
Sat 8:00 am - 8:00 pm
Sun 8:00 am - 8:00 pm

594 El Camino Real, Santa Clara, CA 95050594 El Camino Real

Urgent care

Lab testing

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Labcorp

Open until 4:00 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
SatClosed
SunClosed

2419 Forest Ave, San Jose, CA 951282419 Forest Ave

4.33(502 reviews)

Lab testing

Labcorp

Open until 3:00 pm

Mon 8:00 am - 3:00 pm
Tue 8:00 am - 3:00 pm
Wed 8:00 am - 3:00 pm
Thu 8:00 am - 3:00 pm
Fri 8:00 am - 3:00 pm
SatClosed
SunClosed

1018 Murrieta Blvd, Livermore, CA 945501018 Murrieta Blvd

4.31(569 reviews)

Lab testing

Quest Diagnostics

Open until 4:00 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

1090 E Stanley Blvd, Livermore, CA 945501090 E Stanley Blvd

4.31(404 reviews)

Lab testing

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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.

Quest Diagnostics

Open until 4:00 pm

Mon 6:30 am - 4:00 pm
Tue 6:30 am - 4:00 pm
Wed 6:30 am - 4:00 pm
Thu 6:30 am - 4:00 pm
Fri 6:30 am - 4:00 pm
SatClosed
SunClosed

160 Hospital Dr, Vallejo, CA 94589160 Hospital Dr

4.14(516 reviews)

Lab testing

Call now

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.

Labcorp

Open until 2:30 pm

Mon 8:00 am - 2:30 pm
Tue 8:00 am - 2:30 pm
Wed 8:00 am - 2:30 pm
Thu 8:00 am - 2:30 pm
Fri 8:00 am - 2:30 pm
SatClosed
SunClosed

2100 Forest Ave, San Jose, CA 951282100 Forest Ave

4.49(481 reviews)

Lab testing

I was able to choose a Labcorp location and schedule an appointment. Check in was easy, and I only needed to provide my name and DOB. They were able to locate my order in their system. They were already aware that my labs were paid for prior to the appointment. I had my labs done on a Wednesday, and I received my results by Saturday. Great experience.