Table 1.

Classification of BCIS severity.

BCIS Grade	Hypoxia	Hypotension	Loss of Consciousness
Grade I	Moderate: SpO2 <94%	Moderate: Decreased SBP ≥ 20%	None
Grade 2	Severe: SpO2 <88%	Severe: Decreased SBP ≥ 40%	Unexpected Loss of Consciousness
Grade 3	Cardiovascular collapse requiring CPR