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, if possible.
Submit With Order
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, please click the sidebar link to access the Interface Map.
Aliases
  • Macroprolactin by PEG
  • Macroprolactin, Serum
  • PRL (Prolactin)
  • Prolactin (PRL)
  • Prolactin, Macro