| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Prolactin, Total and Monomeric : 16122
Test CodePROLTM or 16122
Alias/See Also
Macroprolactin; Big-Big Prolactin
CPT Codes
84146x2
Includes
Total Prolactin. Free Prolactin.
Instructions
Fasting specimen is recommended but not required.
Collect blood by venipuncture into plain tubes (without anticoagulant). Separate the serum from the cells.
Collect blood by venipuncture into plain tubes (without anticoagulant). Separate the serum from the cells.
Transport Container
Preferred Specimen
1 mL serum
Minimum Volume
0.4 mL
1 mL serum
Minimum Volume
0.4 mL
Transport Temperature
Room temperature.
Specimen Stability
Room temperature: 7 days; Refrigerated: 7 days; Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis. Plasma.
Methodology
Immunoassay (IA), PEG Precipitation
Setup Schedule
Wednesday
Report Available
2-9 days (From receipt at performing laboratory)
Reference Range
By report.
Clinical Significance
For some patients the level of Prolactin measured by immunoassay may be inaccurate with respect to the level of monomeric, biologically active Prolactin. The Macroprolactin by PEG Precipitation test can help to identify if a patient sample has elevated Prolactin due to mostly inactive protein-bound Prolactin (Macroprolactin).
Performing Laboratory
Quest Diagnostics
