This phenotype determines if a halogenated anesthetic was administered between Anesthesia Start and Anesthesia End.
 
A case must have = 2 halogenated gas physiologic values above threshold for = 2 minutes to return (1) Yes.  If < 2 valid halogenated gas values between Anesthesia start - End then, (0) No, halogenated gas was not used during the case.   Missing minutes between valid values will have the last value carried forward if <= to 5 minutes.
 
*Note:
	- These readings do not have to be consecutive or of the same type of volatile gas.
	
	
 
	
		
			| MPOG Concept ID | Concept Name | Threshold of Clinical Significance (%) | Threshold of Clinical Significance  (reported as number) | Threshold of Clinical Significance (%) | Threshold of Clinical Significance  (reported as number) | 
		
			| 3260 | Isoflurane Exp % | 0.3 | 0.003 | 100 | 1 | 
		
			| 3265 | Isoflurane Insp % | 0.3 | 0.003 | 100 | 1 | 
		
			| 3270 | Sevoflurane Exp % | 0.4 | 0.004 | 100 | 1 | 
		
			| 3275 | Sevoflurane Insp % | 0.4 | 0.004 | 100 | 1 | 
		
			| 3280 | Desflurane Exp % | 1.2 | 0.012 | 100 | 1 | 
		
			| 3285 | Desflurane Insp % | 1.2 | 0.012 | 100 | 1 | 
		
			| 3290 | Halothane Exp % | 0.5 | 0.005 | 100 | 1 | 
		
			| 3295 | Halothane Insp % | 0.5 | 0.005 | 100 | 1 | 
		
			| 3297 | Enflurane Exp % | 0.5 | 0.005 | 100 | 1 | 
		
			| 3298 | Enflurane Insp % | 0.5 | 0.005 | 100 | 1 | 
		
			| 3299 | Miscellaneous Volatile Agent Insp % | 0.3 | 0.003 | 100 | 1 | 
		
			| 3300 | Miscellaneous Volatile Agent Exp % | 0.3 | 0.003 | 100 | 1 |