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Whats wrong with Expired pregnancy test?
Your results can be a false-negative or a false-positive.
Can vitamin c cause false negative pregnancy results?
No it can not.
What is the percentage of women who are pregnant with false negative test results?
If you took a pregnancy test too early, you could have a false negative. There are seldom false positive's though.
What is the rate of false positive for nicotine testing?
The rate of false positive results for nicotine has not been established but false results can occur for a variety of reasons. Diet, medications, environment, and errors in the lab can cause false positive results on nicotine blood tests.
Can a kidney infection cause a false positive result in a pregnancy test?
Some infections in the kidney can cause false positive dipstick test results but not false negative.
Can anemia cause a false negative on a home pregnancy test?
No. The only thing that will cause a false negative on a HPT is testing too early. See your DR for a blood test.
Which stage about the reconstruction stage is false?
Sometimes the second stage of reconstruction can be false. During two-stage, sometimes there can be false negative results from aspiration.
Can menstrual blood interfere with urine pregnancy test results?
Menses blood could possibly interfere with a home pregnancy kit. You can get a false positive or false negative with any testing kit. A women is better off seeing her general practitioner doctor or obstetrics/gynecological doctor for testing, pre-natal education and treatment.
Can diabetes cause false positive alcohol test results?
No, diabetes has no effect on blood alcohol content. That depends on what type of test you are referring to... Acetone (or other ketones) in the blood/body, whether because of Diabetes, other illness, or some Diets CAN, and often DOES cause false positive alcohol test results if tested with a Breathalyzer. It may not affect the actual blood alcohol content, but it CAN cause false positive test results... THAT is why the result is called a FALSE positive.
Are there other more serious causes of a false negative pregnancy test?
There are several things that can contribute to a negative pregnancy test even if you are pregnant. Some medications can give you a false negative, the timing of the test can affect the results. If you did not follow directions properly; if you let the test sit for too long the results may read negative after a while. It is important to read the results within the amount of time given on the instructions of that particular pregnancy test you bought
What do you do if pregnancy tests give different results?
Usually different results from pregnancy tests come from using the test too early. Taking the test too soon will cause a test to read a false negative. Some HPT are more sensitive than others, they will read positive sooner than a less sensitive test. False negative results are very common from using the test too early, false positive is almost unheard of unless the test kit was damaged somehow. Always check the kit before using it, including the expiration date and follow directions.
Can HIV positive later become HIV negative?
Only if the first HIV test was false positive can the test results change.
