How to overcome carbon monoxide poisoning?

Hello doctor,

I was standing beside a truck when I thought I had carbon monoxide poisoning, so I went to the emergency room. There was no doctor there, only a nurse practitioner. She conducted my venous blood work, and my carboxyhemoglobin (COHb) level was normal, but my partial venous oxygen pressure (PvO2) came back as abnormal. I suffer from panic attacks and was having one at the time. While the nurse was drawing my blood, I held my breath the whole time, but before drawing blood, I was hyperventilating. I noticed that the normal PvO2 range is 35 to 45 mmHg, but my units are in mEq/L. The emergency room discharged me without providing much information about PvO2.

My report shows a PvO2 level of 35.5 mEq/L, and I could not find any information on the internet about what the normal PvO2 should be in mEq/L. Can you please help me understand if my PvO2 is in the normal range or not, or if I have any problems? I feel fine; my oxygen saturation (SpO2) is 99%. I can run up five flights of stairs without significant shortness of breath. My echocardiogram was normal and was performed five months ago. I have attached the report for your reference.

Thank you.

Hello doctor,

Thank you so much for the reply. No, I do not smoke or use tobacco, nor do I use any drugs or alcohol. I do not suffer from asthma. My resting heart rate is usually in the 60s, and I can climb eight flights of stairs before getting short of breath. I have been diagnosed with panic and anxiety disorder and have been taking Sertraline 50 mg daily for five years. I did not experience any symptoms after being near a truck exhaust for a few minutes. I had a panic attack, thinking that I had inhaled a large amount of carbon monoxide, so I went to the emergency room. If PvO2 in units of mEq is equivalent to mmHg, then does my PvO2 value of 35.5 mEq/L indicate that my PvO2 is within the normal range? Can a panic attack, wearing a mask in the hospital for an hour, and holding my breath before the blood was drawn cause this slightly low PvO2 value? So, am I healthy and normal, and is there no need to worry about this?

Thank you.