However, that does not mean you should not, at the very least, not with the permission or direction of a physician or other health professional
If an anesthesiologist transitions from personally performing (AA) to directing (QK) mid-session because a second room opens, that transition must be documented with exact times
Vitamin B12 also plays a critical role in red blood cell production
Each 10 units (0.1 mL) contains 500 mcg
Adding 2 mL gives 5 mg/mL total, or 2.5 mg/mL of each, so a 20 unit draw delivers 500 mcg of each
Since nitrous oxide is commonly used for surgery in the elderly, some experts feel vitamin B 12 deficiency should be ruled out prior to its use or prophylactic vitamin B 12 supplementation implemented before and after exposure to the gas (7, 18)