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22678 HCG, Tumor Marker, Serum

HCG, Tumor Marker, Serum
Test Code: HCG-TM
Useful For

​Used to monitor patients for retained products of conception. This test also aids in the diagnosis and management of gestational trophoblastic disease, teratomas, testicular tumors, ovarian germ cell tumors and other hCG-secreting tumors. It is not intended for use to detect or monitor pregnancy.​

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 or Plasma​Serum Separator Tube (SST)Red Top Tube (RTT),​Lithium-heparin Plasma Separator Tube (PST), Sodium-heparin Green Top Tube (GTT)​0.5 mL​0.4 mL​0.3 mL​
Specimen Stability Information
Specimen Type Temperature Time
Serum/Plasma​ ​ Ambient​ 8 hours​
Refrigerated​ 7 days​
Frozen​ >7 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.​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ Less than 2 hours​ Two-Site Sandwich Assay, BCI DxI​
Test Information
Test measures native intact-HCG and free beta-HCG subunits (Total beta-HCG). Method is identical to that used for quantitative serum pregnancy testing (HCG-Pregnancy). CSF cannot be tested by this method and should be sent to Mayo Medical Laboratories (CSF must be frozen).​
Reference Range Information
Performing Location Reference Range
Marshfield​ Non-pregnant females: 0-6 mIU/mL
Males: 0-2 mIU/mL​
Interpretation
Persistent elevations (10-100 mIU/mL) of HCG in females for weeks or months could reflect an interfering substance. HCG assessment in urine or with an alternative serum assay (contact Lab) is recommended in these situations.​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84702​ ​ ​ ​ ​
Ordering Applications
Ordering Application Description
​Centricity ​HCG, Tumor Marker
​Cerner ​HCG, Tumor Marker
​COM ​HCG, Tumor Marker
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 or Plasma​Serum Separator Tube (SST)Red Top Tube (RTT),​Lithium-heparin Plasma Separator Tube (PST), Sodium-heparin Green Top Tube (GTT)​0.5 mL​0.4 mL​0.3 mL​
Specimen Stability Information
Specimen Type Temperature Time
Serum/Plasma​ ​ Ambient​ 8 hours​
Refrigerated​ 7 days​
Frozen​ >7 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.​
Useful For

​Used to monitor patients for retained products of conception. This test also aids in the diagnosis and management of gestational trophoblastic disease, teratomas, testicular tumors, ovarian germ cell tumors and other hCG-secreting tumors. It is not intended for use to detect or monitor pregnancy.​

Reference Range Information
Performing Location Reference Range
Marshfield​ Non-pregnant females: 0-6 mIU/mL
Males: 0-2 mIU/mL​
Interpretation
Persistent elevations (10-100 mIU/mL) of HCG in females for weeks or months could reflect an interfering substance. HCG assessment in urine or with an alternative serum assay (contact Lab) is recommended in these situations.​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ Less than 2 hours​ Two-Site Sandwich Assay, BCI DxI​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84702​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.