5 doctors weighed in:

Can asthma make my CO2 levels low?

5 doctors weighed in
Dr. Barbara Stark Baxter
Internal Medicine - Allergy & Immunology
4 doctors agree

In brief: Hypocapnia

When you have active asthma, you breathe more rapidly and deeply to make up for low oxygen.
In a healthy person, this WILL cause the CO2 to go down . If the attack is severe and the patient starts to have respiratory failure , the CO2 comes back up . This is a very bad sign and means the person probably needs more aggressive management and perhaps mechanical assistance like CPAP or a ventilator.

In brief: Hypocapnia

When you have active asthma, you breathe more rapidly and deeply to make up for low oxygen.
In a healthy person, this WILL cause the CO2 to go down . If the attack is severe and the patient starts to have respiratory failure , the CO2 comes back up . This is a very bad sign and means the person probably needs more aggressive management and perhaps mechanical assistance like CPAP or a ventilator.
Dr. Barbara Stark Baxter
Dr. Barbara Stark Baxter
Thank
Get help from a real doctor now
Dr. Aaron Milstone
Board Certified, Internal Medicine - Pulmonology
23 years in practice
1M people helped
Continue
108,000 doctors available
Read more answers from doctors