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Barbiturates, Screen and Confirmation, Meconium
Amobarbital; butabarbital; butalbital; pentobarbital; phenobarbital; secobarbital
Detect fetal exposure to barbiturate class drugs.
Initial presumptive testing by immunoassay at a testing threshold of 100 ng/gm; presumptive positives confirmed by definitive gas chromatography/mass spectrometry (GC/MS).
Specimens from different voidings may be pooled if necessary. For step-by-step instructions for collecting and preparing meconium specimens, see Meconium Testing Collection Instructions.
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.