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Phenobarbital Level

Message
Phenobarbital is an anticonvulsant medication used in the treatment of all types of seizures except absence seizures (petit mal).


Test Code
PHENO


Alias/See Also
LAB3000179


CPT Codes
80184

Preferred Specimen
2.0 mL serum collected in a gold serum separator tube (SST)


Minimum Volume
0.5 mL serum


Other Acceptable Specimens
2.0 mL serum collected in an orange rapid clot serum separator tube (RCT)


Specimen Stability
4 weeks when refrigerated (2-8o)
up to 3 years when frozen at <-20oC


Reference Range
Sex Age Reference Range
M/f 0 - 150 years 15.0 - 40.0 µg/mL


Performing Laboratory
Penn Medicine Lancaster General Health



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.