Please do not confuse invalid with negative. THERE IS A DIFFERENCE
BETWEEN INVALID AND NEGATIVE. Invalid is when the test is unable to show
Sep 5, 2016 ... “An invalid result usually means the test is faulty for some reason and isn't picking
up the hormone. Try using a different brand or go to another ...
Baby Hopes explains that an invalid positive pregnancy test can occur because
of a chemical pregnancy, an evaporation line on the test, chemical interference ...
An invalid pregnancy test occurs when the patient does not see any visible line in
the pregnancy test kit after ... What causes a high PSA test reading? Q: ...
If there is still no pink line in the test control window, the test is invalid and ... Click
here to learn why hCG (the hormone detectable by our tests) causes you to ...
Feb 2, 2011 ... Read all 11 responses: "I am a few days late. I have taken a couple of pregnancy
tests, one Saturday afternoon which came back invalid.
www.ask.com/youtube?q=What Causes an Invalid Pregnancy Test?&v=qGC5KHHws6k
Sep 1, 2015 ... You're right, the test is invalid when you use it and the control strip does ...
Otherwise, this is the reason they sell pregnancy tests in bulk, with ...
Invalid pregnancy test mean, Ask a Doctor about Pregnancy.
Printable usage instructions for the Aimstrip pregnancy test strips. ... If a colored
line does not appear in the "Control Zone", the test is invalid (see "Examples of
Invalid ... Certain health conditions can also cause a false or irregular test result.
Jan 20, 2013 ... Your period is late, you get a positive pregnancy test, but then find out ... A
chemical pregnancy is usually the most common cause of a false positive ... on
the test as much as required and causing an invalid reading (half ...