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# 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
Syphilis, Neonatal Screen (less than 1 month of age)
Test Code: RPRNEO
Synonyms/Keywords
Syphilis, RPR​
Useful For
This test is useful for the evaluation of neonates < one month of age suspected of having congenital syphilis. Positive tests will be titered.
 
Note: Positive tests will not be confirmed with a second treponemal test as recommended by the CDC for individuals over the age of one month. For the determination of syphilis serostatus in individuals > one month in age, order Syphilis Antibody IgG (SYPHAB)
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​ Serum​ Red Top Tube (RTT) or Serum Separator Tube (SST) ​ 0.5 mL​ 0.3 mL​ 0.3 mL​
Specimen Stability Information
Specimen Type Temperature Time
Serum​ Refrigerate​ 5 days​
Frozen > 5 days​
Rejection Criteria
Gross hemolysis
Gross lipemia
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 1 day​ Flocculation​
Test Information
This semi-quantitative test is intended for testing neonates (<1 month of age) only. It does not include a confirmatory treponemal test as recommended by the CDC for individuals one month of age and above. Order Syphilis Antibody, IgG (SYPHAB) as the primary syphilis diagnostic test.​
Reference Range Information
Performing Location Reference Range
 Marshfield​ Negative​
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
86593​
Synonyms/Keywords
Syphilis, RPR​
Ordering Applications
Ordering Application Description
​Centricity ​RPR, Neonatal (<1 Mo. of Age)
​Cerner ​Syphilis, Neonatal Scr <1 month
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​ Serum​ Red Top Tube (RTT) or Serum Separator Tube (SST) ​ 0.5 mL​ 0.3 mL​ 0.3 mL​
Specimen Stability Information
Specimen Type Temperature Time
Serum​ Refrigerate​ 5 days​
Frozen > 5 days​
Rejection Criteria
Gross hemolysis
Gross lipemia
Useful For
This test is useful for the evaluation of neonates < one month of age suspected of having congenital syphilis. Positive tests will be titered.
 
Note: Positive tests will not be confirmed with a second treponemal test as recommended by the CDC for individuals over the age of one month. For the determination of syphilis serostatus in individuals > one month in age, order Syphilis Antibody IgG (SYPHAB)
Test Information
This semi-quantitative test is intended for testing neonates (<1 month of age) only. It does not include a confirmatory treponemal test as recommended by the CDC for individuals one month of age and above. Order Syphilis Antibody, IgG (SYPHAB) as the primary syphilis diagnostic test.​
Reference Range Information
Performing Location Reference Range
 Marshfield​ Negative​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 1 day​ Flocculation​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
86593​
For most current information refer to the Marshfield Laboratory online reference manual.