Nitrazine or phenaphthazine is a pH indicator dye often used in medicine. More sensitive than litmus, nitrazine indicates pH in the range of 4.5 to 7...

and nitrazine paper test may be used. An arborization test assesses the patient's vaginal secretions, while a nitrazone paper test uses the nitrazine paper...

in pregnancy. Other tests for detecting amniotic fluid mainly include nitrazine paper test and fern test. One main test that is performed on amniotic...

performs a valsalva maneuver. Nitrazine test: A sterile cotton swab is used to collect fluid from the vagina and place it on nitrazine (phenaphthazine) paper...

antibiotics. At least half a milliliter of feces is collected, and a strip of nitrazine paper is dipped in the sample and compared against a color scale. A pH...

and reddish brown under alkaline conditions Chromophore Fecal pH test Nitrazine Universal indicator Harris, Daniel C. (2005). Exploring chemical analysis...

calcium phosphate crystallization. Testing the urine periodically with nitrazine paper can help to ensure the urine pH remains in this optimal range. Using...

know are contaminated (laced) with other substances, such as fentanyl, nitrazine, or xylazine. This is a significant problem, with the DEA reporting fentanyl-related...