Carbon Monoxide Blood and DNA Biorepository

The investigators propose to establish a biorepository for storage of serum, plasma, and DNA
collected from patients with carbon monoxide (CO) poisoning. Participants will also be
evaluated for clinical outcome. The biorepository will include serum and plasma from
CO-poisoned patients drawn at the time of injury as well as from blood drawn at clinical
follow-up visits. The biorepository will also bank DNA from these participants.

These specimens can be analyzed in the future to elucidate potential inflammatory and
immunological mechanisms that cause brain and heart damage and identify possible biological
and genetic predictors of poor outcome.

Inclusion Criteria:

1. Symptomatic carbon monoxide poisoning (headache, nausea, vomiting, dizziness, fatigue,
muscle aches, slowed mentation, confusion, loss of consciousness, etc.).

2. Documented exposure to carbon monoxide and no other reasonable explanation for their
signs and symptoms.

Exclusion criteria:

1. Pregnancy

2. Age < 18 years

3. Unable to obtain informed consent

4. Subjects who, in the opinion of the investigator, are unable to comply with the
requirements of the study or are unsuitable for any reason. The investigator and the
Sponsor, prior to enrolling the subject on a case-by-case basis, must approve and
document any waiver of these inclusion and exclusion criteria.

5. Anemia requiring blood products within the last 4 months or hematocrit less than the
laboratory normal reference range