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Pregnancy test are based on the detection of human clonic gonadotropin hormone.
Specimens
Both tests detect the presence of a hormone called human choronic gonadotropin hormone.
Urine test
Urine test must be collected without reservation in a clean trey container first morning urine usualy content the highest concentration of HCG. However urine collected at anytime drawing the day may be used.
Blood test
The quantitative blood test measures the exact amount of Beta HCG in the blood by electro chemi huminosence based on immuno assays. Han dear qualitative HCG gives a simple positive or negative result.
Pregnancy test by strips
It is a rapit chromato graphic immuno assays. For the quantity deduction of human chronic gonadotropin hormone in urine or serum to acid in theearly detaction of pregnancy. These pregnancy test are specially designed for profit users for determination of early pregnancy. But, also found a place in home pregnancy testing applications due to easy of use and low cost. 98%meaning the test highly selective for HCG glycoprotoin.
Procedure
Remove the testing device for the foil pouch by learning the notes hold the strips by the coloured end. Image the strips into the urine with the arrow n point towards the specimen do not immerse the fast the match line. Take the strips out of after a minimum 10 seconds and lay the trips flat and clean dry non observable surface. Read the test result in 10 minutes ensure the background of the test area white before in the interpretation the result do not interpreted result after 30 minutes.
Pregnancy test by midstream
Is commonly used for home pregnancy testing. You can able the pregnancy midstream directly into the urine there is no need of urine collection.Open the sealed pouch and remove the stick. Take off the cap to expose the tip. If using as a midstream test hold the stick so that it is pointing downwards in your urine stream for 10 seconds. If using as a dip test ensure it is dipped in the urine to the depth shown on the diagram for 20 seconds.
Replace the cap, lay it flat and read the result within 5 minutes. As the test progresses you should see the liquid moving up the test area causing it to go light purple. As the purple fades the control line will appear as a strong line and the result line if present will appear below this. The accessory of pregnancy test of 99.6 % every high sensitivity.
Gravindex method
Gravindex is an agulation inhibition test performed on the urine sample to detuct pregnancy. It is based on the Double angle and antibody reaction. If the level of HCG is high, the HCG will bind to the antibodies, and thus no agglutination with the HCG-coated latex particles occurs. If no agglutination occurs, the subject is pregnant.
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