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HCG Qualitative, Urine
Test CodeHCGQLU
CPT Codes
84703
Preferred Specimen
Sterile container without additive.
A first morning urine specimen is preferred however, urine specimens collected at any time may be used.
Minimum Volume
1.0 mL
Specimen Stability
Room Temperature: As soon as possible
Refrigerated: 48 hours at 2-8° C
Frozen: 20° C
Refrigerated: 48 hours at 2-8° C
Frozen: 20° C
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Samples not labeled with complete first and last name of patient and date of birth.
Methodology
Rapid chromatographic
Setup Schedule
Sun-Sat
Report Available
Same day
Reference Range
Negative - Non-pregnant women and healthy men.
Positive - Pregnant
Positive - Pregnant
Clinical Significance
For the qualitative detection of human choriaonic gonadotropin (hCG) in Urine to aid in the early detection of pregnancy.
Very dilute urine specimen, as indicated by low specific gravity, may not contain representative levels of hCG. If pregnancy is still suspect, a first morning urine specimen should be collected 48 hours later and retested. • False negative result may occur when the levels of hCG are below the sensitivity level of the test. When pregnancy is still suspected, a first morning urine specimen should be collected 48 hours later and retested. . The hCG Combo Rapid Test detects hCG at concentrations of 20 mIU/mL or greater in urine.
Very low levels of hCG (less then 50 mIU/mL) are present in the urine specimen shortly after implantation. However, because a significant number of first trimester pregnancies terminate for natural reason, a test result that is weakly positive should be confirmed by retesting with a first morning urine specimen collected 48 hours later.
As with any assay employing mouse antibodies, the possibility exists for interference by human anti-mouse antibodies (HAMA) in the specimen. Specimens from patients who have received preparations of monoclonal antibodies for diagnosis or therapy may contain HAMA. Such specimen may cause false positive or false negative results.
For the qualitative detection of human chorionic gonadotropin (hCG) in serum or urine to aid in the early detection of pregnancy
Very dilute urine specimen, as indicated by low specific gravity, may not contain representative levels of hCG. If pregnancy is still suspect, a first morning urine specimen should be collected 48 hours later and retested. • False negative result may occur when the levels of hCG are below the sensitivity level of the test. When pregnancy is still suspected, a first morning urine specimen should be collected 48 hours later and retested. . The hCG Combo Rapid Test detects hCG at concentrations of 20 mIU/mL or greater in urine.
Very low levels of hCG (less then 50 mIU/mL) are present in the urine specimen shortly after implantation. However, because a significant number of first trimester pregnancies terminate for natural reason, a test result that is weakly positive should be confirmed by retesting with a first morning urine specimen collected 48 hours later.
As with any assay employing mouse antibodies, the possibility exists for interference by human anti-mouse antibodies (HAMA) in the specimen. Specimens from patients who have received preparations of monoclonal antibodies for diagnosis or therapy may contain HAMA. Such specimen may cause false positive or false negative results.
For the qualitative detection of human chorionic gonadotropin (hCG) in serum or urine to aid in the early detection of pregnancy
Performing Laboratory
Frederick Health Laboratory
400 W 7th Street
Frederick, MD 21701
Last Updated: May 6, 2020
