| 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 # |
HCG,BETA SUBUNIT, QNT, SERUM
Test Code4416
CPT Codes
84702
Preferred Specimen
serum
Minimum Volume
"0.3 mL (Note: This volume does not allow for repeat testing.)
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Instructions
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Values obtained with different assay methods should not be used interchangeably in serial testing. It is recommended that only one assay method be used consistently to monitor each patient's course of therapy. This procedure does not provide serial monitoring; it is intended for one-time use only. If serial monitoring is required, please use the serial monitoring number 480038 to order.
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Values obtained with different assay methods should not be used interchangeably in serial testing. It is recommended that only one assay method be used consistently to monitor each patient's course of therapy. This procedure does not provide serial monitoring; it is intended for one-time use only. If serial monitoring is required, please use the serial monitoring number 480038 to order.
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Transport Container
"Red-top tube or gel-barrier tube. If a red-top tube is used, transfer separated serum to a plastic transport tube.
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Transport Temperature
"Refrigerate
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Specimen Stability
14 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Citrate plasma specimen; improper labeling
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Methodology
"Electrochemiluminescence immunoassay (ECLIA) "
Limitations
"In patients receiving therapy with high biotin doses (ie, >5 mg/day), no sample should be taken until at least eight hours after the last biotin administration.1 As with all tests containing monoclonal mouse antibodies, erroneous findings may be obtained from samples taken from patients who have been treated with monoclonal mouse antibodies or have received them for diagnostic purposes.1 In rare cases, interference due to extremely high titers of antibodies to streptavidin and ruthenium can occur.1 The test contains additives, which minimize these effects.
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Reference Range
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Male
0-3
Female
nonpregnant
0-5
postmenopausal
0-8
pregnant
Weeks Gestation
3
6-71
4
10-750
5
217-7138
6
158-31,795
7
3697-163,563
8
32,065-149,571
9
63,803-
Male
0-3
Female
nonpregnant
0-5
postmenopausal
0-8
pregnant
Weeks Gestation
3
6-71
4
10-750
5
217-7138
6
158-31,795
7
3697-163,563
8
32,065-149,571
9
63,803-
