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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5 instant-book locations

Quest Diagnostics

Open until 4:00 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 7:30 am - 12:00 pm
SunClosed

340 E North Ave, Lombard, IL 60148340 E North Ave

4.57(400 reviews)

Lab testing

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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.

Quest Diagnostics

Open until 11:00 am

Mon 7:00 am - 11:00 am
Tue 7:00 am - 11:00 am
Wed 7:00 am - 11:00 am
Thu 7:00 am - 11:00 am
Fri 7:00 am - 11:00 am
Sat 8:00 am - 12:00 pm
SunClosed

1180 W Wilson St, Batavia, IL 605101180 W Wilson St

4.37(556 reviews)

Lab testing

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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.

Quest Diagnostics

Open until 4:00 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
SatClosed
SunClosed

2340 S Highland Ave, Lombard, IL 601482340 S Highland Ave

4.13(412 reviews)

Lab testing

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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.

Kiddos Health & Urgent Care

Open until 5:00 pm

Mon 8:00 am - 5:00 pm
Tue 8:00 am - 5:00 pm
Wed 8:00 am - 5:00 pm
Thu 8:00 am - 5:00 pm
Fri 8:00 am - 8:00 pm
Sat10:00 am - 4:30 pm
Sun 8:00 am - 2:00 pm

3 Yorktown Shopping Center, Lombard, IL 601483 Yorktown Shopping Center

4.73(37 reviews)

Urgent care

Lab testing

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94% of patients recommend this clinic.

My child was sick and I could make an appointment for the same day and with a short wait time. It was a good experience for my child because he’s scared of doctors and in this urgent care the stuff and doctor were so polite with us and especially to my child. And my baby was comforted with lollipop and a toy for a visit which made him happy and now he trusts them.

Quest Diagnostics, Parkway Plaza

Quest Diagnostics

Open until 3:30 pm

Mon 6:00 am - 3:30 pm
Tue 6:00 am - 3:30 pm
Wed 6:00 am - 3:30 pm
Thu 6:00 am - 3:30 pm
Fri 6:00 am - 3:30 pm
Sat 7:00 am - 12:00 pm
SunClosed

4126 N Milwaukee Ave, Chicago, IL 606414126 N Milwaukee Ave

4.21(595 reviews)

Lab testing

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After receiving my results, I called Quest Lab Testing and discussed the results with a consultation. This consultation filled in my knowledge gaps and made me more aware of my particular situation.

Labcorp

Open until 4:30 pm

Mon 8:00 am - 4:30 pm
Tue 8:00 am - 4:30 pm
Wed 8:00 am - 4:30 pm
Thu 8:00 am - 4:30 pm
Fri 8:00 am - 4:30 pm
SatClosed
SunClosed

1020 E Ogden Ave, Naperville, IL 605631020 E Ogden Ave

4.35(569 reviews)

Lab testing

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