1 Stool tests can produce false-positive and false-negative results. 2  False-positive means that the test may be positive when you don't have a polyp or cancer. 3  False-negative means that the test may be negative when you do have a polyp or cancer.4  These tests may miss polyps and some cancers.n abnormal FIT/iFOBT or FOBT test means that there was some blood in your stool at the time of the test. An abnormal sDNA test means that some abnormal cells were found. Abnormal test results are called positive.
anon48371: I don't know exactly what kind of lizard it was, but it wasn't poisonous. The only venomous lizard in the U.S. is the gila monster and they live in areas like Arizona and New Mexico. Even then, bites from those lizards are rare.izards are reptiles, which means they are cold-blooded, lay eggs, and covered by scales instead of feathers or fur. Some live in trees, underground, on the banks of rivers, or in the desert.
The king brown snake (Pseudechis australis) is immune to most Australian snake venom, and is known to also eat young inland taipans. The perentie (Varanus giganteus) is a large monitor lizard which also shares the same habitat. As it grows large enough, it will readily tackle large venomous snakes for prey.