Meconium Barbiturate 
Mnemonic MISC
CPT 80345
Test Code 3509949
Synonyms Meconium Barbitals
Test Includes Butalbital and phenobarbital
Specimen Meconium
Volume 1g(equivalent to 1/2 inch cube)
Container Plastic Screw Cap Container
Special Instructions  
Specimen Prep  
Storage Room Temperature
Transport Temp Room Temperature
Stability Rm Temp 1 week
Stability Refrig 3 months
Stability Frozen 1 year
Methodology GC/MS, LC-MS/MS and/or LC-TOF/MS
Rejection Criteria   
Reference Value Negative 
Performed/TAT Monday - Saturday        
Comments Positive cutoff = 50 ng/g