Macroprolactin
0020765
 
Ordering Recommendation
Mnemonic
MACROPRO
Methodology
Quantitative Chemiluminescent Immunoassay
Performed
Sun
Reported
1-8 days
New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory.
Specimen Required
Patient Preparation
 
Collect
Serum separator tube or plasma separator tube. Also acceptable: Green (sodium or lithium heparin).  
Specimen Preparation
Allow specimen to clot completely at room temperature. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)  
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
EDTA plasma.  
Remarks
 
Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 48 hours; Frozen: 3 months  
Reference Interval
Test Number Components Reference Interval
0070115Prolactin
Prolactin
Male Female
1-​9 years 2.1-​17.7 ng/mL 2.1-​17.7 ng/mL
10 years and older 2.1-​17.7 ng/mL 2.8-​26.0 ng/mL
Monomeric Prolactin
Age Male Female
1-​9 years 2.1-​13.3 ng/mL 2.1-​13.3 ng/mL
10 years and older 2.1-​13.3 ng/mL 2.8-​19.5 ng/mL
Monomeric Prolactin Percent Greater than 50%
Interpretive Data
If the % Monomeric Prolactin is 40-50%, then the result is indeterminate for macroprolactin. If the % Monomeric Prolactin is less than 40%, then this indicates the presence of macroprolactin. A Monomeric Prolactin result above the upper reference limit is consistent with hyperprolactinemia.

Monomeric Prolactin was determined by PEG precipitation. Macroprolactin is precipitated by PEG and is not measured.
Note
CPT Code(s)
84146 x2
Components
Component Test Code*Component Chart Name
0020766Monomeric Prolactin
0020767Monomeric Prolactin Percent
0070115Prolactin
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • Macroprolactin by PEG
  • Macroprolactin, Serum
  • PRL (Prolactin)
  • Prolactin (PRL)
  • Prolactin, Macro