Final answer:
The nitrazine paper test is performed to verify premature rupture of the membranes (PROM), which is a condition where the amniotic sac breaks before the onset of labor. This test measures the pH of the vaginal secretions to detect the leakage of amniotic fluid.
Step-by-step explanation:
The nitrazine paper test is performed to verify premature rupture of the membranes (PROM). PROM is a condition where the amniotic sac surrounding the baby in the uterus breaks before the onset of labor. This test measures the pH of the vaginal secretions, which changes when the membranes rupture, indicating the leakage of amniotic fluid.
To perform the test, a strip of nitrazine paper is placed in the vagina to collect the vaginal fluid. The color change of the paper indicates whether the fluid is acidic (pH below 4.5) or alkaline (pH above 6.0), suggesting the presence of amniotic fluid.