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Pregnancy Test (Bacteriology)

The preferred sample is a blood sample for biochemistry, however, if blood cannot be collected, a urine specimen may be sent to Microbiology. hCG is a glycoprotein hormone produced by the blastocyst. The appearance of hCG soon after conception and its subsequent rise in concentration during early gestational growth, makes it a good marker for the early detection of pregnancy.

General information

Collection container (including preservatives): A urine sample collected at any time of the day is suitable, but a first morning sample is recommended

Specimen type: Urine


Collection including preservative: Samples must be collected in a clean and dry container.

Specimen transport: Samples may be stored at 2-8°C for up to 72hrs

Minimum volume of sample: The assay requires approximately 200µl for a single test.

Special precautions: Analysis should cannot be performed on visibly blood stained samples or dilute samples (low specific gravity)

Laboratory information

Measurement units: IU/L

Biological reference units: Not applicable

Turnaround time: Please contact the laboratory for urgent tests

2 hrs turnaround time

Clinical information

Clinical decision points: Not applicable

Factors known to significantly affect the results: The Clinitest hCG Pregnancy Test is not validated for use with urine samples containing preservatives.Skin cleansers containing chlorhexadine may affect the accuracy of the result. High protein concentrations (eg. blood staining) will cause a falsely elevated Specific Gravity result.