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22968 Pregnancy Test, Stat

Pregnancy Test, Stat
Test Code: PGSER
Synonyms/Keywords
​Pregnancy, HCG, Rapid​
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​ Plasma or Serum​ Lithium-heparin Plasma Separator Tube (PST)​, Serum Separator Tube (SST) Sodium-heparin Green Top Tube (GTT), Red Top Tube (RTT) 0.5 mL​ 0.4 mL​ 0.3 mL​
Collection Processing Instructions

Serum or plasma collected on gel separator is acceptable for up to 48 hours.

For plasma samples only:
- Sites with centrifuges capable of reaching a speed of 4,400g can centrifuge the collection tube for 3 minutes.
- Sites with standard centrifugation must centrifuge the collection tube for 10 minutes at 1900g.

Specimen Stability Information
Specimen Type Temperature Time
Serum/Plasma​ ​ Ambient​ 8 hours​
Refrigerated​ 5 days​
Frozen​ >5 days​
Interference
Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patients receiving murine-based agents for chemotherapy or tumor-imaging studies. Fluorescein will interfere; specimens should not be drawn for 48 hours following fluorescein angiography for diabetic retinopathy.​
 
For testing performed at Weston: High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay. 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.
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Chippewa Falls ​Monday through Friday ​Less than 2 hours​ Chemiluminescent Immunoassay​/Siemens Dimension
​Weston
 ​Monday through Sunday​ ​Less than 2 hours​ ​Chemiluminescent Immunoassay​/Siemens Dimension
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​two-step immunoenzymatic assay/Beckman access2/DXI
Park Falls
 ​Monday through Sunday​ ​Less than 2 hours​ ​​two-step immunoenzymatic assay/Beckman access2/DXI
​Ladysmith Medical Center ​Monday through Sunday ​Less than 2 hours​ ​two-step immunoenzymatic assay/Beckman access2/DXI​
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​two-step immunoenzymatic assay/Beckman access2/DXI
Marshfield​ Monday through Sunday​ Less than 2 hours​ Chemiluminescent Immunoassay​/Siemens Centaur
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​​two-step immunoenzymatic assay/Beckman access2/DXI
Neillsville​​​Monday through Sunday​​Less than 2 hours​​Chemiluminescent Immunoassay​/Siemens Dimension
Stevens Point​ ​Monday through Friday ​Less than 2 hours​ ​two-step immunoenzymatic assay/Beckman access2/DXI​
​Wisconsin Rapids ​Monday through Friday ​Less than 2 hours​ ​Chemiluminescent Immunoassay/Siemens Dimension
Reference Range Information
Performing Location Reference Range
All Performing Sites Results are reported as Negative or Positive
Negative: < or = 14 mIU/mL
Positive: > or = 15 mIU/mL​
Interpretation
This is a qualitative test. Negative qualitative results that are inconsistent with the clinical evidence should either be repeated in 48-72 hours or confirmed by a quantitative method. The reference value for a positive pregnancy test is 15 mIU/mL. hCG is detected as early as one week after conception with average values of 50 mIU/mL (Clinical Chemistry 43:12;2233-2243 (1997)).​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84703 ​ ​ ​ ​ ​
​
Synonyms/Keywords
​Pregnancy, HCG, Rapid​
Ordering Applications
Ordering Application Description
​Cerner ​Beta Human Chorionic Gonadotropin Qualitative
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​ Plasma or Serum​ Lithium-heparin Plasma Separator Tube (PST)​, Serum Separator Tube (SST) Sodium-heparin Green Top Tube (GTT), Red Top Tube (RTT) 0.5 mL​ 0.4 mL​ 0.3 mL​
Collection Processing

Serum or plasma collected on gel separator is acceptable for up to 48 hours.

For plasma samples only:
- Sites with centrifuges capable of reaching a speed of 4,400g can centrifuge the collection tube for 3 minutes.
- Sites with standard centrifugation must centrifuge the collection tube for 10 minutes at 1900g.

Specimen Stability Information
Specimen Type Temperature Time
Serum/Plasma​ ​ Ambient​ 8 hours​
Refrigerated​ 5 days​
Frozen​ >5 days​
Interference
Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patients receiving murine-based agents for chemotherapy or tumor-imaging studies. Fluorescein will interfere; specimens should not be drawn for 48 hours following fluorescein angiography for diabetic retinopathy.​
 
For testing performed at Weston: High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay. 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.
Reference Range Information
Performing Location Reference Range
All Performing Sites Results are reported as Negative or Positive
Negative: < or = 14 mIU/mL
Positive: > or = 15 mIU/mL​
Interpretation
This is a qualitative test. Negative qualitative results that are inconsistent with the clinical evidence should either be repeated in 48-72 hours or confirmed by a quantitative method. The reference value for a positive pregnancy test is 15 mIU/mL. hCG is detected as early as one week after conception with average values of 50 mIU/mL (Clinical Chemistry 43:12;2233-2243 (1997)).​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Chippewa Falls ​Monday through Friday ​Less than 2 hours​ Chemiluminescent Immunoassay​/Siemens Dimension
​Weston
 ​Monday through Sunday​ ​Less than 2 hours​ ​Chemiluminescent Immunoassay​/Siemens Dimension
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​two-step immunoenzymatic assay/Beckman access2/DXI
Park Falls
 ​Monday through Sunday​ ​Less than 2 hours​ ​​two-step immunoenzymatic assay/Beckman access2/DXI
​Ladysmith Medical Center ​Monday through Sunday ​Less than 2 hours​ ​two-step immunoenzymatic assay/Beckman access2/DXI​
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​two-step immunoenzymatic assay/Beckman access2/DXI
Marshfield​ Monday through Sunday​ Less than 2 hours​ Chemiluminescent Immunoassay​/Siemens Centaur
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​​two-step immunoenzymatic assay/Beckman access2/DXI
Neillsville​​​Monday through Sunday​​Less than 2 hours​​Chemiluminescent Immunoassay​/Siemens Dimension
Stevens Point​ ​Monday through Friday ​Less than 2 hours​ ​two-step immunoenzymatic assay/Beckman access2/DXI​
​Wisconsin Rapids ​Monday through Friday ​Less than 2 hours​ ​Chemiluminescent Immunoassay/Siemens Dimension
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84703 ​ ​ ​ ​ ​
​
For most current information refer to the Marshfield Laboratory online reference manual.