O2 sats and asthma attacks revisited

After 9 years of blogging about life with severe asthma, I still get a lot of traffic from people searching the web for specific information about O2 saturation and how it relates to asthma or the severity of an asthma attack. So for those who might have missed my earlier posts, here’s a recap of that topic.

O2 saturation, by itself, IS NOT a good indicator of how severe an asthma flare is. There are many factors involved in assessing the severity of an attack, the biggest one being how well you respond to treatment, not your O2 sat readings! In fact, when it comes to gauging the severity of an attack, I would place O2 sat readings near the bottom of the list. While they’re useful as a rough guide to see which way you’re heading, they don’t paint the entire picture.

As with all vital sign monitoring, numbers that are higher or lower than normal usually get the most attention, and since breathing problems are often equated with oxygen levels, patients and medical staff alike tend to focus on the pulse ox reading and often place too much importance on it. But here’s the deal, you can be in the middle of a pretty nasty asthma attack and still have normal, or near normal O2 sat readings. How is this possible? Well, you have to remember that asthma is a disease of the airways, not the alveoli where gas exchange take place (such as the case with Emphysema). So unless your airways are completely blocked (which is rare unless you had some sort of massive anaphalatic reaction), or you have a secondary infection or a pneumonia going on, at least a little bit of air still gets through those tight lungs, and that little bit of air is usually enough to keep the blood oxygen level within the lower limits of the normal range. It’s usually not until you’ve been working really hard to breath over a period of several hours, or sometimes even days, that your body can no longer compensate and that’s when your O2 sats will start to drop.

So what’s a typical O2 saturation reading for someone experiencing a bad attack? Everyone is different, but based on my observations as an RT working in a hospital ER and also as a person with really severe asthma, Id say a pulse ox reading of 87-95% on room air or low flow oxygen is pretty common in the ER. As an example, you can see in the photo above, that even though I was in the middle of a pretty severe flare, I was still able to maintain my sat at 95% while breathing 40% oxygen).

Now, that doesn’t mean that if you’re sat is higher than 95%, that you’re not sick or not suffering, it just means that you’re still able to oxygenate your body. A super high saturation (99-100%) could also indicate some hyperventilaton, which btw almost always happens at the very beginning of an acute flare.
Naturally , if someone’s saturation is trending lower that’s a much bigger concern, as it could possibly indicate impending respiratory failure or full blown respiratory arrest. Thankfully in the vast majority of asthma attacks, that rarely happens.

Bottom line, if you’re an asthmatic having a difficult time breathing and it seems to be getting worse despite taking your medications, what you need to do is contact your doctor and/ or get to a hospital. Don’t waste time by fixating on your O2 sat numbers and trying to figure out if they’re too high to warrant a trip to the ER. Base your decision on how you feel, not your numbers.

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38 thoughts on “O2 sats and asthma attacks revisited

  1. I couldn’t agree more that the O2 sats, while certainly has its place of importance; in asthmatics – I think the overall picture truly needs to be assessed. My O2 sats were good, but I was teetering on respiratory failure as hard as I was working to breath and they seemed oblivious to it.

    I just recently was hospitalized with my asthma that hasn’t acted up in over 5 years. Odd thing – like a volcano that was domant…it is now active – wonderful. Anyway, I have cough variant asthma. I don’t wheeze, I cough – when they checked my lungs all they heard is just diminished breath sounds. I thank my luck stars that the ER physicians were cognizant enough to recognize how sick I was and admitted me. Despite the fact my O2 sats were darn near normal (94%), my heart rate was 150-170, I was sweating like I was running a marathon, working hard to breath and couldn’t say more than 2 words together without having to either have a coughing fit or try to gasp for air, I was using so much energy to just try and breath, I had no energy to stand or even lift my arms (they felt like lead weight)…but because my O2 sats were good they never placed me on oxygen until I was up on the floor and the respiratory therapist came in to give me a breathing treatment and noticed right away I was still in distress (God bless the respiratory therapists!!!). During my stay (and it was awhile) my O2 sats dropped as I tired out (even on oxygen), but never low enough to be considered critical (90%).

    My biggest question would be the charting vitals by the nursing staff. They come in and tell you to take a deep breath, then when the O2 sats go up ever so briefly, that is the number they record. Really? Why do that do that? To me that seems like they are trying to show numbers better then you actually are. I sat at 92% nearly all day on 4 liters O2, they tell me to take a deep breath – I “gasp” and get my O2 up to 96% – for like 4 seconds and then it promptly comes right back down to 92%…and yet 96% gets recorded. Not sure this paints an accurate picture of how I am truly fairing. I still received excellent care overall, I just don’t understand that particular practice.

    1. Haha, it’s a mystery. I think people ( ie nurses) just assume that difficulty breathing is associated with low oxygen levels. Well it is, but it isnt. In asthmatics, difficulty breathing occurs because the airways are narrowed, not because of lack of oxygen. O2 sats in asthmatics dont usually drop substantially until you’re in full blown resp failure or asphyxia occurs.

      Hope you’re recovering well :]

  2. I’m having to learn all over again a world I thought I was very fortunate to have escaped, not exactly where I thought I would be years later.

    Recovering a lot slower than I could have ever imagined. Even on prednisone (40mg) and half a dozen other preventatives, inhalers and nebulizers – BUT – recovering none the less. Made it through Christmas with only one trip to the Urgent Care. (ok, and 4 asthma attacks treated at home, in the car, at a party, ect.) overall, Not bad I think.

    I hope you are doing better as well and have made it home.

  3. I agree with what you have said, Stephen, but still have a question – what do you do if you are in the ER or at an Urgent Care and ALL they are looking at is your oxygen sats. I’ve been sent home many times (without even a breathing treatment) because my oxygen sats were “too high” to be showing I was in distress or needed intervention. I even had my own pulmonologist (and no I don’t see here anymore) send me home with an oxygen sat of 91%. On a good day – I’m typically at 97 or 98%. So when I’m using all of my effort to breathe, and can’t say more than 2 words at a time, how do I convince the ER or Urgent Care doctor (who has never seen me before) that I am in distress?

    1. I can imagine your frustration. First of all, never ever go to an Urgent care center for an asthma attack. Even if the staff is experienced, they’re just not set up to treat a sick asthmatic. ALWAYS GO TO AN ER.

      Having said that, either the staff at that hospital are totally ignorant about the symptoms of asthma, or there is something else going on that I dont know about. The decision to treat and/or admit a patient to the hospital for asthma is based on all kinds of criteria, not just O2 sats. Some of it is based on the patients past medical history and some by how the patient looks and how their chest sounds. The fact that they wouldnt even give you a breathing treatment tells me that they dont believe that your symptoms are caused by asthma. A lot of conditions can mimic asthma, especially anxiety disorders.

      My advise to you is , whenever possible , is to contact your Pulmonologist or primary care doc and have them notify the ER that you’re coming in.
      I guarantee this will help.

      Good luck

  4. I have struggled with this issue for the past twelve years. Some physicians and nurses give me looks suggesting I may be crazy. My saturation levels are never abnormal. I rarely wheeze. I cough, I have an elephant on my chest, I have difficulty saying more than a few words at a time, and because of reactive airways, I am hoarse. I thank you for posting this explanation: it was a relief to know there are others out there like me. I will carry copies of this article to give to care givers.

    1. Your symptoms sound more like vocal cord dysfunction than asthma. Has that possibility been checked? It is possible to have both conditions but symptoms are slightly different and treatment is quite different. Just a thought

  5. Thank you for posting this. This knowledge needs to be shared more widely with healthcare professionals. I literally want to cry with frustration when I go to the docs with a tight, silent chest, they check sats and seem very satisfied to show me that my O2 is 99%. That’s great but why do I still feel tight, itchy chin, coughing mucus, uneasy, irritable, exhausted and feel like an asthma attack is imminent? The other thing that I find worrying is when they listen to my chest on the breath in and no wheeze is evident. That’s because I wheeze on exhalation but they don’t seem to count that as a symptom of infection. It does make me feel like I don’t know what to do, am I imagining the severity of how I feel inside 🙁

    1. You’re welcome.

      Sorry to hear that you have asthma. Dont worry about your chest sounds. It’s actually normal to have wheezing on exhalation with asthma, not on inhalation. Wheezing is usually caused by bronchospasm and/or inflammation of the airways, which causes them to narrow and produces a wheeze. You can have asthma symptoms without an active infection. Lastly, O2 sats have nothing to do with asthma severity, unless you are critically ill. Take care!

  6. Hi again,
    I’ve just read some of your posts about your horrendous and life threatening experiences of asthma flare ups. I don’t know how you summed up the mental energy to articulate what you went through and the aftermath of recovery but full respect to you for doing it. Thank you for bravely sharing your experiences and I wish you all the very best in your continued management of your asthma.

    1. Thank you again. Blogging about my experiences with these bad flare ups actually helps me cope a little better. Ironically, it’s the high dose of steroids Im on during these bouts that gives me the clarity to write about them. Hopefully, it helps others as well.

  7. Thanks for this explanation. I had an awful experience this week of severe cough and every breath felt like a hurculean effort. I did the right thing and called for an ambulance. When the ambulance arrived, I was very quickly dismissed because I had no wheeze and high oxygen sats.

    They tried to convince me not to go to hospital. I said I needed to go and at triage I was categorized as low risk due to them forwarding on this opinion, so I waited and waited. I finally got in a bed and on oxygen, medication etc and I felt 1,000% better. The doctors were actually surprised in the transformation.

    It would be great if this info was more well known, it would have saved me the stress of trying to convince someone to take me to hospital while I felt I was being sat on by an elephant.

  8. Last night I waited two hours in the ER to see a doctor with high blood pressure, heart rate, and respiratory rate. Gave me 30 min nebulizer and sent me on my way. I was coughing and shaking because the “barking” coughs were so painful. They didn’t immediately send me back to the doctor with the initial checkup because my pulse ox was only 97.
    Now today, my BP has reached over 150/90, my heart is beating through my chest, my resp rate is 21-32, and I’m taking my albuterol every 30 to stop the wheezing.
    But am I going to the ER? No. Because they don’t take me seriously.
    I’m sick of it. I can’t even sleep right now. Sitting up in bed and writing this instead because Im struggling.

    1. This is an all too common problem in certain parts of the country. Im assuming you have cough variant asthma?

      If you don’t already, you need to be followed by a pulmonologist. If the ER docs know that you are being seen by a specialist, they’re more likely to take you seriously. In the meantime, if you dont get better, go to a different hospital.

  9. Hi Stephen. Thank you so much for your information. My son is struggling with his breathing since having a viral infection 3 weeks ago. He has a reliever inhaler and has just started using Clenil Modulite. I have just spoke to our GP who has just argued that because my son has perfectly good SATs he cannot be having an asthma flare up. My son has a tight chest and is coughing in the day and finds going up stairs hard going. He is exhausted but the GP doesn’t think he is too bad because his SATs are fine and he is not wheezing. The Asthma UK nurse tells me that people do not always wheeze. I am so confused as to what is happening to my son and who is telling me the right information. The Asthma nurse thinks he needs steroid tablets to get things back under control. Do you think you can have asthma that is out of control but is not causing restless sleep and should it feel better lying down?

  10. Hello Jo,

    Sorry to hear about your son’s breathing problems. It’s sad in this day and age that some healthcare practitioners still believe that asthma flare ups are always associated with drops in O2 sat. That simply is not true. The only time that logic really applies, is when the person is suffering a severe life-threatening attack or if the person has a secondary infection, like a pneumonia. Mild to moderate asthma flare ups rarely result in O2 desaturation. The reason is because asthma is a disease of the airways, not the alveoli (air sacks) where oxygen exchange take place. Even when the lungs are tight, Oxygen manages to get through.

    The asthma UK folks are correct, not every asthmatic wheezes. Some cough a lot and dont wheeze, some wheeze a lot and dont cough at all. Sometimes the airways close so tight , that’s there’s not enough air moving around to make a wheezing sound.

    The most important indicator of an asthma flare, is how the person feels what their peaks are and how they respond to reliever meds. Steroid pills are only necessary when inhaled steroids arent working . There are lots of side effects from steroid pills.

    My recommendation, is that you find another doctor , preferably an asthma specialist ( I think you call them consultants in the UK). I would have the new doctor do a complete re-evaluation to make sure son actually has asthma and not something else that looks like asthma.

    Hope this helps.

    PS.. may I ask, how old is your son?

    1. Nicki
      September 17, 2016 at 12:16 pm
      Hi stephen. Sooo glad I found this site!! I’m an EMT and to be honest with you, I have always went with someones O2 sat when we get a call. Plus being asthmatic as well. I am always checking my O2 sat at home. I would consider my asthma to be very well under control. But when the pollen season or i come in contact with something, it will hit. Question for you. Sometimes I wonder if it’s anxiety or true asthma. I usually pre-treat everyday before I exercise. Other than that I hardly ever use my inhaler. Today was one of those days (haven’t had in in forever) that I get this weird feeling, i can feel my HR start to go up..I’m freaking out because I’m trying to hurry and do a treatment and when i’m doing it my HR is already out the roof so i’m wondering if that is making me worse or if true asthma makes you hyperventalate. My pulse was going 150-170. I finally finished my treatment but had to breathe in a bag to get my pulse down. Don’t know what trigger my symptons today. No wheezing, no coughing ever. No tighness in my chest. Just a change feeling. I have been checked for VCD. My fear is that I will hyperventalate to the point of passing out and not get all my neubilzer med in. Can you kinda help me out here. I have a great asthma-allergist dr. He goes by O2 just like everyone. But being an EMT , I am learning more what to check on a person besides their O2 sat!! Thanks

  11. just discovered your site and I’m staying for a look around! I have asthma but wasn’t diagnosed until an adult as I rarely ever wheezed. My son rarely wheezes either, just gets a weird voice, is more breathless, and then vomits and gags. It took 5 years to get him diagnosed, how scary! Now my youngest has low-ish oxygen (93%) but “no wheezing so he is fine”… I’m taking precautions and monitoring him because wheezing is a decent sign of asthma but not guaranteed.

  12. Thanks for this article. I have cystic fibrosis as well as severe asthma ( which is mainly due to allergies) and was so confused by the contradictory reading. My O2 sats are pretty good (between 94-98) and seemed to have no correlation to the severity of the asthma attack. The info you provided has helped me clarify the situation! 🙂
    Mandy

  13. Hi stephen. Sooo glad I found this site!! I’m an EMT and to be honest with you, I have always went with someones O2 sat when we get a call. Plus being asthmatic as well. I am always checking my O2 sat at home. I would consider my asthma to be very well under control. But when the pollen season or i come in contact with something, it will hit. Question for you. Sometimes I wonder if it’s anxiety or true asthma. I usually pre-treat everyday before I exercise. Other than that I hardly ever use my inhaler. Today was one of those days (haven’t had in in forever) that I get this weird feeling, i can feel my HR start to go up..I’m freaking out because I’m trying to hurry and do a treatment and when i’m doing it my HR is already out the roof so i’m wondering if that is making me worse or if true asthma makes you hyperventalate. My pulse was going 150-170. I finally finished my treatment but had to breathe in a bag to get my pulse down. Don’t know what trigger my symptons today. No wheezing, no coughing ever. No tighness in my chest. Just a change feeling. I have been checked for VCD. My fear is that I will hyperventalate to the point of passing out and not get all my neubilzer med in. Can you kinda help me out here. I have a great asthma-allergist dr. He goes by O2 just like everyone. But being an EMT , I am learning more what to check on a person besides their O2 sat!! Thanks

  14. Thank you for your article. I got asthma while serving in the U.S. Army from a different infection that was not treated correctly, for three months I had coughing fits, low ability to breath and recovery from a PT test was horrible. The doctor on sick call thought I was making things up. I wasn’t I was sick. I flew to Germany and while waiting in line for a flu shot the Major heard my coughing fit that would occur after saying a few words. Answer the phones for battalion s-1 was a nightmare. The doctor immediately pulled me from the line and had me taken to the hospital in Bremerhaven. I stayed there a few days and yep sure enough I had asthma. I never had asthma before, this was caused by doctor failure at my last duty station. Learning how to manage it and pay attention to warning signs became important to me. I know when it is an attack for me…coughing like I have clogged lungs but nothing coming up and the fits last for longer than 30 seconds to 1 minute, when I can’t talk except to end in a coughing fit that keeps coughing for some time seems like forever, walking to the bathroom or washing dishes is enough physical exertion I can handle we have a problem.

    Sadly people around me do not believe it is a serious thing, this asthma issue, it isn’t as life threatening as a heart attack it’s just needing to calm down and learn to control my breathing (this from my husband) who does not know about asthma or allergies. Give it time it will pass like any cold. Luckily, the ER staff is very good about believing me and they watch my coloration (i’ve learned not to wear makeup when I go to the ER so they can get good observations) the RT is really good about listening and double checking the nurses and this time when the nurse had a hard time listening to my lungs he actually helped her listen to what he found cause when he asked me to take a deep breath of course the coughing started. Their biggest concern though is that my blood pressure had sky rocketed to 160/85 before treatment. When he started treatment my blood pressure dropped to good levels again. Heart rate was high too. So at least they looked at all areas because even if it had been an anxiety attack…the BP and heart rates were alarming, after treatment everything went to breathing a sigh of relief.

    Actually I came across your blog today before I went to the ER cause I felt I couldn’t wait for a doctor’s appointment. I don’t know if your article gave me a wake up call or I decided to listen to my body I do not know, but yours was a big deciding factor to listen to my body not to my husband’s lack of knowledge on this subject. Thank you. I am sure things could have gotten worse if I hadn’t gone in.

    1. Hi and thank you for writing. Im sorry to hear that you’re having breathing problems.

      What is a PT test? Did you mean PFT ( pulmonary function test)?

      I understand your frustration. There many different types and severities of asthma, but unfortunately, we tend to get lumped all together under the heading of “Asthma” . If you dont fit text book example of a wheezing asthmatic, you’re either faking it or have some kind of anxiety problem.

      Because there are many conditions that mimic asthma, if you haven’t already, I would highly recommend that you see a Pulmonologist who specializes in asthma and get a firm diagnosis. At least then you’ll have a better idea of what’s going with your lungs.

      All the best to you,

      Steve G

      PS. There is such a thing as “cough-variant asthma”. The only symptom is coughing spells and shortness of breath.

  15. Hi Steve,
    I am hoping you will provide some much needed insight for me, as I have questioned my daughter’s doctors, Respitory therapists, nurses, and searched pubMed-and am still left with no answers. My 5 year old daughter was just released from the hospital after a six day stay with an acute asthma attack due to a respiratory virus. She has a complicated backstory. She was born at 35 weeks, and was exposed inutero throughout her birthmother’s pregnancy. We brought her home at 7 months. Since she was a toddler, every time she would get a cold, even a post nasal drip, she would begin to take “staccato breaths” yet lungs were clear. It was as if she was “afraid to breath”. This is my child that did not walk until she was 20 months, that was given a diagnosis of mild CP which was then dismissed, and has been determined to be one that is highly dramatic. As she has gotten older, her colds can be accompanied by a dry cough, and sometimes a throat wheeze. I have taken her to the doctor, and her lung sounds have always been clear. When she was recently hospitalized, her o2 seats never fell below 92%, and on subsequent follow-up visits have been 95-97%. My question to you is, given that she was a preemie, isn’t it possible that her normal o2 may be 97-98%, and or she may have some sort of weak upper respiratory musculature that may make her react to colds in this manner? I have scheduled an appointment with a pulmonologist for next month. I just find it unusual that there have been absolutely no other triggers for this child other than a cold, and her reactions are so atypical.

    1. Hi, Sorry to hear that you’re daughter is having problems.

      Did you mean she was born at 25 weeks? Low weight premies can have all sort of breathing issues as they get older, which are not well understood and aren’t necessarily related to asthma.. In fact, many are misdiagnosed with asthma. I would definitely follow up with someone who specializes in pediatric pulmonology.

      Wish I could be of more help.

      1. Hi Steve,
        Thanks so much for your quick reply. Could I ask your opinion as to what other possible causes besides asthma could attribute to her breathing issues? I’d love to do some research prior to the visit with the pulmonologist. Thanks again!

        1. P.s. I was a severe asthmatic as a child, and spent a great deal of time in the hospital. So much so, that my nickname became Bubbles :). I was surprised how much treatment has changed over the course of a few decades-much less steroid use, which is both good and bad.

  16. Hi Stephen,
    Glad I found this sites I’m going through a difficult bout with my asthma right now-same thing happened to me two years ago. Both in the winter and both after chest colds. Here’s what’s happens: the cold progresses from a productive cough to a dry cough. This is when things begin to get really rough-my breathing sounds normal (I listen to myself, I’m a trained nurse though I don’t work in the field) I sound normal, but it feels like there’s a ton of mucus in there-just stuck. My chest begins to get tight, I can’t take a full breath in. I blow around 400. I do my inhaler, I do my nebulizer but still cannot catch my breath (stairs are especially challenging). So it feels like all my airways are closing I can’t catch my breath and I go to the ER. They check my sat which is like 98/99 no O2 aid and listen to my lungs and say theres no way to admit me it’s fine I have anxiety….well yeah one would think it would be appropriate to be slightly anxious when you can’t breath. I’ve gone to pulmonologists and get allergy shots I’ve been to the ER. Everyone tells me it’s anxiety, but I take a klonipin when this happens and it does nothing for me. I’m 27 y/o fit girl w no lung sounds and a nearly perfect O2 sat, but these attacks make me feel as though I’m suffocating. Help?

  17. Stephen, I’ve been trying to solve a mystery. I had an episode of tachycardia that was improved with oxygen by about 30%. So, my heart rate was 150 without oxygen and it dropped to about 105 within one minute of oxygen therapy. My SaO2 during the time with and without oxygen remained at about 98 or 99%. If the oxygen was removed because the SaO2 looked good then my heart rate jumped right back up to 150 or higher. Obviously, my heart rate was compensating for something. Blood gases drawn at the same time showed severe hypoxia. How can the spirometer be 98%or 99% when the blood gases at the same time showed severe hypoxia? Have you ever heard of such a thing?

    1. Hi, To answer your specific question regarding the SPO2 and the miscorrelation with your blood gases, I would have to know the exact numbers on your blood gas results. You have to remember that PO2 ( the measurement of oxygen in your blood) is different than O2 saturation. It gets rather complicated, but under certain circumstances it’s possible to have a normal sat with a low O2. More important though, SPO2s measurements are only accurate if the devise is receiving a solid and stable pulse reading from your finger. If you’re tachycardic with a HR of 150, chances are the reading was probably false. I would disregard the pulse ox reading and go with the ABG results.

  18. I so totally agree with this. Many times is or my husband have gone to the ER and and have been sent home sating we are fine without treatment cause our lod ox is normal. The worse time was when my husband was sick and his asthma was flaring really bad. I took him to our local ER. The nurse made him take that exhale test (sorry I can’t remember the name) and he could barely get out enough to push the little needle in the red zone, He for dizzy and almost past out while doing it. The nurse took note, his blood ox was in the 90s. Dr came in listened to his lungs looked at his blood of but not at the nurses notes and said “well your oxygen levels are fine and I dont hear wheezing (I was at the other end of the room and could hear the wheezing and he could take a deep breath without having a coughing fit) so you are fine and can go home” No treatment nothing. I ended up taking him to our Dr the next day had to be put on major steroids and still he didn’t fully recover for weeks. It’s so fustrating

    1. Sorry to hear about your experience in the ER. Unfortunately this is an all all to common problem for a lot of asthmatics. Physicians and staff need better education in this area.

  19. So glad i found this blog.

    Ive experienced the same frustration as many here.

    Im currently in hospital with urti induced asthma. Recently received adipose stems, with rapid af episode after taking panadeine forte, then onset of asthma like symptoms 2 days later.

    Id been virtually symptom free for many years aside from occasional flare during colds and drinking white wine.

    3 gp presentations and 4 emd presentations, with persistent chest tightness and sob, i was so totally fed up with being dismissed because i didnt have a wheeze and my sats had always been normal, i presented to emd, rang my choice of respiratory specialist and pleaded with him to admit me.

    He agreed. Im still not right, but he is the only dr so far who has acknowledged that not all asthmatics present in the same manner. Today, after reviewing me, he noted that my wheeze had improved. Wtf? i questioned him about the other 7 doctors misdagnosing me, and he replied by saying that maybe i didnt have a wheeze at that stage. Im so confused and worried about the future management of a condition that i thought was largely behind me.

    Im only anxious because of the severity of my symptoms, and getting tired of staff telling me to relax. Implying this is an anxiety issue.
    Im scared of being bumped out, because of how hard it was for me to be taken seriously in the first place.

    What are your thoughts on histamine intolerance and asthma?

    1. Sorry to hear you’re having all these problems. Unfortunately this is all to common for many asthmatics. Assuming that you were correctly diagnosed with asthma (which believe it or not up to 50% of people are not), you really need to see a respiratory doctor to specializes in asthma and discuss these issues with him. Maybe he can coordinated your care. Histamine is a potent asthma trigger not only in asthma, but also in hayfever. Best of luck to you!

      1. So glad I found this blog. Currently in hospital after my asthma flaring up following a chest infection. Went to one hospital (I live in Australia). they treated me for my asthma and admitted me. that night, I had another pretty bad attack and it didn’t resolve with treatment and my o2 sats were okay for a period of time. The hospital I went to doesn’t have an ICU. So unfortunately when my sats did drop, there was minimal stuff they could do for me. By the time they got a medical team to transport me to a hospital with an ICU I was so tired from breathing I don’t even remember the transfer. 2 days later and I’m still in ICU, hoping to go home at the end of the week.

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