Lung Function Tests in China: Spirometry & PFT for COPD and Asthma

If you have a persistent cough, get short of breath walking up stairs, or wheeze when the seasons change, a lung function test is the single most useful investigation to understand what is happening in your airways. Yet in many countries, getting a full set of pulmonary function tests (PFTs) means a specialist referral, a long wait, and a meaningful bill.

A growing number of English-speaking travellers are choosing to have their breathing checked properly while they are in China — where spirometry and a full PFT panel can usually be booked within days and completed in a single morning, at a fraction of private-clinic prices in the US or UK.

This guide explains what lung function testing actually measures, who should consider it, and how SinoCareLink helps you arrange it. Note that this is about respiratory function — how well your lungs move air — and is different from lung cancer screening, which looks for tumours with imaging.

What lung function tests measure

"Lung function testing" is an umbrella term. A typical respiratory work-up bundles several complementary tests:

• Spirometry — the core test. You breathe forcefully into a mouthpiece, and the machine records how much air you can move and how fast. The key numbers are FVC (the total volume you can exhale), FEV1 (how much you blow out in the first second), and the FEV1/FVC ratio. A reduced ratio points to obstruction (as in asthma or COPD), while a reduced FVC with a preserved ratio can suggest a restrictive pattern.
• Bronchodilator reversibility — spirometry is often repeated about 15 minutes after an inhaled bronchodilator. A meaningful improvement in FEV1 suggests reversible airway narrowing, which is characteristic of asthma.
• Lung volumes and DLCO — a fuller PFT adds measurements of total lung capacity and the diffusing capacity (DLCO), which reflects how efficiently oxygen passes from the lungs into the blood. This helps distinguish between different causes of breathlessness.
• Peak expiratory flow (PEF) — a simple measure of how fast you can blow out, useful for monitoring asthma over time.
• FeNO (fractional exhaled nitric oxide) — a quick breath test that estimates a type of airway inflammation often seen in asthma.

SinoCareLink's Lung & Respiratory Deep Screening is built around this panel, so you leave with a clear picture of your breathing rather than a single isolated number.

Who should get a lung function test

Lung function testing is worth considering if you:

• Smoke or used to smoke, especially with a chronic cough or sputum
• Get breathless more easily than peers of the same age
• Have wheezing, chest tightness, or a cough that worsens at night, with exercise, or in cold air (possible asthma)
• Have a long-term cough or recurrent chest infections
• Work, or have worked, around dust, fumes, or other airborne irritants
• Already have a diagnosis of asthma or COPD and want to check how well it is controlled
• Are preparing for surgery and want a baseline of your respiratory reserve

Major respiratory guidelines treat spirometry as the cornerstone for diagnosing and grading COPD, and as an important objective test when asthma is suspected. If breathlessness is sudden, severe, or accompanied by chest pain, that is an emergency — seek immediate care rather than booking a screening.

Why get lung function testing done in China

• Cost. A full PFT panel in China typically costs a small fraction of private-pay pulmonary testing in Western markets. You see the price before you commit.
• Short waiting times. Where a specialist referral and PFT lab slot can take weeks elsewhere, appointments at Chinese hospital check-up centres are often available within one to three days.
• Everything in one visit. Spirometry, reversibility testing, lung volumes, DLCO, and related blood work can usually be completed in a single morning, rather than spread across multiple appointments.
• Modern equipment. Hospital check-up departments in major Chinese cities run current spirometers and body plethysmography systems and report results against standard reference equations.

All figures here are general ranges — your exact panel and price are confirmed before you book.

How the process works with SinoCareLink

SinoCareLink is a coordination and consulting service. We do not provide medical care ourselves; we arrange and smooth your visit to an established hospital check-up centre.

1. Inquiry. You tell us your symptoms, history, and which city you plan to visit. If you already have a diagnosis or prior results, share them so the panel can be tailored.
2. Coordination. We recommend an appropriate test panel, confirm pricing, and liaise with the check-up centre to reserve a slot — usually within a few days.
3. Preparation. We send clear English instructions. For accurate spirometry you may be asked to avoid certain inhalers for a set window beforehand, and to avoid heavy meals, smoking, and vigorous exercise just before the test.
4. The visit. Spirometry itself takes only a few minutes of active blowing, though reversibility testing adds a short wait. Companion and translation support can be arranged so nothing gets lost.
5. Results. You receive your written report. We can arrange an English translation so you can review it with your own doctor at home.

Frequently asked questions

Is spirometry uncomfortable?
No. It is non-invasive — you simply breathe into a mouthpiece following the technician's coaching. The hardest part is blowing out as hard and as long as you can for the forced manoeuvre.

How long does the test take?
Basic spirometry takes only a few minutes of active testing. With bronchodilator reversibility and a fuller PFT panel, plan for roughly one to two hours at the centre.

Can it diagnose COPD or asthma on its own?
Spirometry is central to diagnosing both, but doctors interpret it alongside your symptoms, history, and sometimes other tests. A lung function test gives objective numbers; a clinician puts them in context.

Do I need to stop my inhalers before the test?
Often yes, for a defined period, so the results reflect your baseline rather than the medication. We pass on the specific instructions before your visit — never stop essential medication without guidance.

Is this the same as a lung cancer screen?
No. Lung function tests measure how your lungs work mechanically. Cancer screening uses imaging such as low-dose CT to look for tumours. They answer different questions and can be done separately.

Will the report be in English?
Reports from Chinese hospitals are usually written in Chinese. SinoCareLink can arrange a full English translation so you can share it with your home doctor.