At what level of carboxyhemoglobin saturation is hyperbaric oxygen (HBO) therapy indicated for an adult patient?
a. Greater than 10
b. Greater than 15
c. Greater than 20
d. Greater than 25
Question 2
Criteria for initiating hyperbaric oxygen (HBO) therapy on an adult patient suspected of suffer-ing from acute carbon monoxide poisoning include which of the following?
1. History of unconsciousness
2. Carboxyhemoglobin saturation less than 20
3. Presence of neurologic abnormality
4. Presence of cardiac instability
a. 2 and 3 only
b. 1, 3, and 4 only
c. 3 and 4 only
d. 1, 2, 3, and 4