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.
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
Measurement units: IU/L
Biological reference units: Not applicable
Turnaround time: Please contact the laboratory
for urgent tests
2 hrs turnaround time
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.