See how your lungs
breatheSpirometry with bronchodilator
You blow into a tube. In 40 minutes you know whether your airways are open, closed or whether something isn't flowing right, and what to do about it.
One consultation. Four clear answers.
You don't leave with a sheet full of unexplained numbers. You leave with a diagnosis, a plan and the peace of mind of knowing what's going on with your lungs.
Exact diagnosis
Asthma, COPD or something else
40 minutes
You arrive and leave the same day
Pain-free
No needles, no radiation
Plan in consultation
I explain what comes next
If it sounds familiar, it's for you
Four typical profiles I see in consultation. If you recognize yourself in one, a spirometry is the logical next step.
A cough that won't go away
More than 8 weeks without stopping
You get short of breath going up
Stairs, slopes, when you rush
You smoke or used to
10 years or more
You use an inhaler
And no one measured if it works
40 minutes today versus years of doubt
Most patients with asthma or COPD spend years without a clear diagnosis. Not here.
The price of not measuring your lung function
* Average time to COPD diagnosis reported by the GOLD Global Initiative. Spirometry is the only test that meets the GOLD and GINA diagnostic criteria.
6 common fears defused
Most patients arrive with doubts that are resolved in 30 seconds. Here they are, up front:
What we're not going to do to you:
- No needles, no blood, no pricks
- No X-rays or radiation
- No long fasting required (just avoid coffee 4 h before)
- We don't put you to sleep or sedate you
- It's not claustrophobic: you stay seated
- It doesn't disrupt your day: you go back to work
A cough that won't let up, shortness of breath or an inhaler that doesn't seem to work?
- A 40-minute test under ATS/ERS 2019 criteria
- Baseline maneuver + bronchodilator + final maneuver
- Flow-volume curve and interpretation by a pulmonologist
- Diagnosis and plan in the same consultation
Same-day diagnosis · A clear plan
Knowing how you breathe
shouldn't take years.
40 minutes. Zero pricks. A diagnosis backed by international standards.
Book my appointmentFrequently asked questions
What patients ask me most before their test.
Does it hurt or feel uncomfortable?
It does not hurt. You blow through a mouthpiece with a soft clip on your nose. The only demanding part is the forced maneuver: you need to give your maximum effort for 6 seconds. Some people cough at the end, which is completely expected.
How do I prepare?
No coffee or sodas 4 h before, no smoking 1 h before, avoid heavy meals 2 h before, and bring your list of current inhalers. If you use a rescue bronchodilator, hold it 6–12 h before. Wear comfortable, loose clothing.
Why is the bronchodilator given?
To measure reversibility. If your obstruction improves by ≥12% and 200 mL in FEV1 after salbutamol, it supports a diagnosis of asthma. If it does not reverse, it suggests COPD. This is the key difference for your treatment.
How often should spirometry be repeated?
It depends on your diagnosis: in stable asthma or COPD, at least once a year to track lung function and fine-tune treatment; after a treatment change, typically at 2–3 months to measure the response. If your symptoms change, spirometry is brought forward, it's the objective way to know whether your lungs are stable.
How much does it cost in CDMX?
Spirometry with bronchodilator costs $1,200 as a standalone test. If you have it together with your pulmonology consultation, +$600 is added to the consultation. At other labs and clinics in CDMX the standalone test usually costs between $1,400 and $1,500. To book or ask questions, message me on WhatsApp at 55 9170 8334.
Find me here
Hospital Santa Coleta
Saturnino Herrán 59San José Insurgentes, Benito Juárez
03900 Mexico City, CDMX
Office hours
Monday to Friday: 4:00 PM to 9:00 PM
Saturday and Sunday: 10:00 AM to 5:00 PM
By appointmentImportant medical notice: The information on this site is educational and informational in nature, prepared by Dr. William César Lara Vázquez, and does not replace consultation, diagnosis or treatment with a medical professional. If you have any respiratory symptom, see your doctor or go to the emergency department. In the event of a respiratory emergency, call 911.