![]() In civil engineering, to determine the carbonatation spread in concrete structures and therefore assess the state of the rebar's passivation film. ![]() To perform a fecal pH test for diagnosing intestinal infections or other digestive problems.Semen also has a higher pH, so recent vaginal intercourse can produce a false reading. If blood gets in the sample or if there is an infection present, the pH of the vaginal fluid may be higher than normal. This test, however, can produce false positives. A blue strip means it's more likely the membranes have ruptured. The strips will turn blue if the pH is greater than 6.0. The strips change color depending on the pH of the fluid. This test involves putting a drop of fluid obtained from the vagina onto paper strips containing nitrazine dye. This test is done to ascertain the nature of fluid in the vagina during pregnancy especially when premature rupture of membranes (PROM) is suspect.Nitrazine is usually used as the disodium salt. More sensitive than litmus, nitrazine indicates pH in the range of 4.5 to 7.5. Terbutaline 0.Nitrazine or phenaphthazine is a pH indicator dye often used in medicine.Nifedipine 20mg x1, additional 20mg dose in 90min if ctx persist, followed by 20mg q3-8 hrs PRN ctx Accutest brand nitrazine indicator paper is the economical choice among FDA-listed medical pH test products for the in-vitro determination of body-fluid pH in. ![]()
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