A pregnancy test attempts to determine whether a woman is pregnant. Markers
that indicate ... The control line of this pregnancy test is blank, making the test
invalid. The control line ... Some dis...
Please do not confuse invalid with negative. THERE IS A DIFFERENCE
BETWEEN INVALID ... Invalid is when the test is unable to show either line, or i...
An invalid pregnancy test occurs when the patient does not see any visible line in
the pregnancy test kit after completing the test, according to ...
If there is still no pink line in the test control window, the test is invalid and testing
... Certain health conditions can also cause a false or irregular test result.
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 ...
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.
If you let the test stay for too long (more than instruction on the box), the test is
invalid. This may cause it to show false positive pregnancy results.
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.
How do I use the pregnancy strip test? INSERT IMAGE Is a faint line on a
pregnancy test positive? Generally, any ... What could cause an invalid 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 ...