Test Code PROLA 
Methodology Electrochemiluminescence Immunoassay 
Description Useful for aiding in evaluation of pituitary tumors, galactorrhea, amenorrhea, infertility in females, and impotence and hypogonadism in males.

No sample should be collected on patients receiving therapy with high biotin doses(i.e. biotin therapy for Multiple Sclerosis or oncology patients; skin, hair and nail supplements, or multivitamins containing > 5 mg/day) until at least 12 hours after the last biotin administration. If unsure, or if the clinical picture does not fit the results please contact the laboratory . We have methods to check for biotin interference as well as for any other interferences and for the accuracy of the results.

Biotin interference would falsely decrease the result of this assay. 

Specimen Draw blood in either a plain, red-top tube or serum gel tube. Spin down and send 1.0 mL (minimum volume: 0.5 mL) of serum refrigerated. 
Reference Values Males: 4.1 - 18.4 ng/mL
Females: 3.4 - 24.1 ng/mL 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 84146