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PREGNANCY TEST, URINE

Item Value
Approval req'd? no
Available Stat? No
Test code UPRG
Performed by? Hematology
Sendout? no
Price range $
In House Availability 24 hours/ 7 days
Principle An immunometric assay using monoclonal antibody application for qualitative determination of human chorionic gonadotropin (HCG) in urine.
Interpretation SENSITIVITY: The test is sensitive to a very low level of HCG (< 50 mIU HCG/mL). However, because a significant number of first trimester pregnancies terminate for natural reasons, and because HCG is not normally detected in the urine of healthy non-pregnant women, a test result that is positive but < 50 mIU HCG/mL should be interpreted in conjunction with other clinical and laboratory data available to the physician.

INTERPRETATION:

Positive: Greater than or equal to 25 mIU HCG/mL present.

Negative: No HCG detected.

Very dilute urine specimens, as indicated by low specific gravity, may not contain representative urinary HCG concentrations. While pregnancy is the most likely reason for the presence of HCG in urine, elevated HCG concentrations unrelated to pregnancy have been reported in patients diagnosed with choriocarcinoma, hydatidiform mole, and nontrophoblastic malignancies including testicular tumors, prostatic cancer, breast cancer, and lung cancer. The presence of HCG in urine should be interpreted in conjunction with other clinical and laboratory data available to the clinician. Note that a false negative test result may occur when the level of urine HCG is unusually high, exceeding levels seen in normal pregnancy. This may occur for example in trophoblastic malignancy.
Container type clean, dry container without preservative
Amount to Collect 50 mL
Collection Instructions First morning specimen of urine, collected in a clean, dry container without preservative is preferred.
Sample type Urine
Min. Volume 10 mL
Normal range negative
References SP(TM) Brand Rapid Test for hCG Package Insert, Revised 10-07.
CPT coding 81025
Last Updated 10/30/2010 10:28:37 AM
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