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22908 Obstetric Panel

Obstetric Panel
Test Code: OBPAN
Synonyms/Keywords
​​Prenatal panel; EPRENATE
Test Components
Panel includes a CBC with automated differential, Blood Typing (ABO and Rh factor) and Antibody Screen (EPRENATE)​, Syphilis IgG Antibody, Rubella Antibody, Hepatitis B Surface Antigen, Hepatitis C Antibody and HIV-1,2 Ab/Ag by EIA with Confirmation​.
Useful For
​Screening to identify the presence of disease and aid in diagnosis.
Specimen Requirements
Fasting RequiredSpecimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen VolumeSpecimen Minimum Volume
(allows for 1 repeat)		Pediatric Minimum Volume
(no repeat)
​No
​Serum
and
Whole Blood
 
Pink Top Tube (PTT)
Red Top Tube (RTT) or Serum Separator Tube (SST)
EDTA whole blood (Lavender Top Tube)
​
6 mL whole blood (Pink Top Tube for transfusion service)
4 mL serum
3 mL EDTA whole blood (Lavender Top Tube)​
​​

Collection Processing Instructions
 

CBC with automated differential to be performed at local site; other tests to be sent to Marshfield Center.

High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay (HAA). It is recommended that patients refrain from consuming any multivitamin or supplement containing biotin for at least 72 hours prior to collection of a blood sample.

Specimen Stability Information
Specimen Type Temperature Time
​Whole blood ​Refrigerate ​<48 hours
​Serum ​Refrigerate ​4 days
Rejection Criteria
Gross hemolysis
​Frozen specimens
​Clotted specimens
IV or tissue fluid diluted specimens ​
Interference
​High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay (HAA).
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​-Transfusion Services ​ABO and Rh factor: Monday through Sunday ​Less than 2 hours ​Solid Phase Red Cell Adherence
​Marshfield​-Transfusion Services ​Antibody Screen: Monday through Sunday ​Less than 2 hours ​Solid Phase Red Cell Adherence
​Marshfield-Clinical Esoteric Automated ​Syphilis Antibody IgG: Monday through Friday ​1 day ​MultiPlex Flow Immunoassay/Bio-Rad BioPlex 2200
​Marshfield-Clinical Esoteric Automated ​Rubella Antibody: Monday through Friday ​1 day ​MultiPlex Flow Immunoassay/Bio-Rad BioPlex 2200
​Marshfield-Clinical Automated ​Hepatitis B Surface Antigen: Monday through Friday ​1 day ​Chemiluminescent/Siemens Advia Centaur
​Marshfield-Clinical Automated ​CBC with Automated Differential: Monday through Sunday ​Less than 2 hours ​Beckman DxH800 with Light Microscopy
​Marshfield-Clinical Automated​Hepatitis C Antibody: Monday through Friday​​1 day​​Sandwich Chemiluminometric Immunoassay/Siemens Centaur​
Marshfield-Clinical Automated​​HIV-1,2 Ab/Ag by EIA with Confirmation: Monday through Sunday2 hoursSandwich Chemiluminometric Immunoassay/Siemens Centaur​​
Test Information
​Results of all tests are only reported upon completion of the entire panel
Reference Range Information
Performing Location Reference Range
​Marshfield

​See individual test listings for reference ranges

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
85025​ ​ ​ ​CBC with auto diff ​
​87340 ​ ​ ​Hepatitis B Surface Antigen ​
86762 ​ ​ ​ ​Rubella Ab ​
86850 ​ ​ ​ ​Antibody screen ​
​86900 ​ ​ ​ABO ​
​86901 ​ ​ ​RH ​
86780​ ​ ​1 ​Syphilis, treponemal ​
​86593 ​ ​1 ​RPR (if needed) ​
86780 ​ ​

 ​1 TP-PA (if needed) ​
87389​

​​1
​HIV-1 Ag, with HIV-1 and HIV-2 Abs, single result
​
​
86689
​​2
​​HIV-1 and HIV-2 (if needed)
​
​
86702
​​1
​​HIV-2 Antibody Evaluation (if needed)
​
​86701

​​1
​​HIV-1 Antibody Evaluation (if needed)
​
​86803
​​1
​Hepatitis C Antibody
​
Synonyms/Keywords
​​Prenatal panel; EPRENATE
Test Components
Panel includes a CBC with automated differential, Blood Typing (ABO and Rh factor) and Antibody Screen (EPRENATE)​, Syphilis IgG Antibody, Rubella Antibody, Hepatitis B Surface Antigen, Hepatitis C Antibody and HIV-1,2 Ab/Ag by EIA with Confirmation​.
Ordering Applications
Ordering Application Description
​Cerner​Obstetric Panel
​COM ​OB Panel
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting RequiredSpecimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen VolumeSpecimen Minimum Volume
(allows for 1 repeat)		Pediatric Minimum Volume
(no repeat)
​No
​Serum
and
Whole Blood
 
Pink Top Tube (PTT)
Red Top Tube (RTT) or Serum Separator Tube (SST)
EDTA whole blood (Lavender Top Tube)
​
6 mL whole blood (Pink Top Tube for transfusion service)
4 mL serum
3 mL EDTA whole blood (Lavender Top Tube)​
​​

Collection Processing
 

CBC with automated differential to be performed at local site; other tests to be sent to Marshfield Center.

High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay (HAA). It is recommended that patients refrain from consuming any multivitamin or supplement containing biotin for at least 72 hours prior to collection of a blood sample.

Specimen Stability Information
Specimen Type Temperature Time
​Whole blood ​Refrigerate ​<48 hours
​Serum ​Refrigerate ​4 days
Rejection Criteria
Gross hemolysis
​Frozen specimens
​Clotted specimens
IV or tissue fluid diluted specimens ​
Interference
​High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay (HAA).
Useful For
​Screening to identify the presence of disease and aid in diagnosis.
Test Components
Panel includes a CBC with automated differential, Blood Typing (ABO and Rh factor) and Antibody Screen (EPRENATE)​, Syphilis IgG Antibody, Rubella Antibody, Hepatitis B Surface Antigen, Hepatitis C Antibody and HIV-1,2 Ab/Ag by EIA with Confirmation​.
Reference Range Information
Performing Location Reference Range
​Marshfield

​See individual test listings for reference ranges

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​-Transfusion Services ​ABO and Rh factor: Monday through Sunday ​Less than 2 hours ​Solid Phase Red Cell Adherence
​Marshfield​-Transfusion Services ​Antibody Screen: Monday through Sunday ​Less than 2 hours ​Solid Phase Red Cell Adherence
​Marshfield-Clinical Esoteric Automated ​Syphilis Antibody IgG: Monday through Friday ​1 day ​MultiPlex Flow Immunoassay/Bio-Rad BioPlex 2200
​Marshfield-Clinical Esoteric Automated ​Rubella Antibody: Monday through Friday ​1 day ​MultiPlex Flow Immunoassay/Bio-Rad BioPlex 2200
​Marshfield-Clinical Automated ​Hepatitis B Surface Antigen: Monday through Friday ​1 day ​Chemiluminescent/Siemens Advia Centaur
​Marshfield-Clinical Automated ​CBC with Automated Differential: Monday through Sunday ​Less than 2 hours ​Beckman DxH800 with Light Microscopy
​Marshfield-Clinical Automated​Hepatitis C Antibody: Monday through Friday​​1 day​​Sandwich Chemiluminometric Immunoassay/Siemens Centaur​
Marshfield-Clinical Automated​​HIV-1,2 Ab/Ag by EIA with Confirmation: Monday through Sunday2 hoursSandwich Chemiluminometric Immunoassay/Siemens Centaur​​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
85025​ ​ ​ ​CBC with auto diff ​
​87340 ​ ​ ​Hepatitis B Surface Antigen ​
86762 ​ ​ ​ ​Rubella Ab ​
86850 ​ ​ ​ ​Antibody screen ​
​86900 ​ ​ ​ABO ​
​86901 ​ ​ ​RH ​
86780​ ​ ​1 ​Syphilis, treponemal ​
​86593 ​ ​1 ​RPR (if needed) ​
86780 ​ ​

 ​1 TP-PA (if needed) ​
87389​

​​1
​HIV-1 Ag, with HIV-1 and HIV-2 Abs, single result
​
​
86689
​​2
​​HIV-1 and HIV-2 (if needed)
​
​
86702
​​1
​​HIV-2 Antibody Evaluation (if needed)
​
​86701

​​1
​​HIV-1 Antibody Evaluation (if needed)
​
​86803
​​1
​Hepatitis C Antibody
​
For most current information refer to the Marshfield Laboratory online reference manual.