Question

Choose the best match for this item:

Positive Nitrite

A. Confirmatory test for bilirubin

B. pH above 7.0

C. Having a milky iridescence

D. White precipitate

E. Decomposed by direct light

F. Yellow pigment that gives urine its color

G. Presence of blood in urine

H. Escherichia Coli

I. Instrument for measuring the refractive index of a substance

J. Having a cloudy appearance

Answer 1

It is a test for detecting nitrituria through positive nitrite test. Normal urine pH range is between 6.0 to 7.5, hence the test must detect the pH higher than 7.0/ Thus option B is correct

The appearance of the tube is red due to addition of reagent A and B and hence all option related to appearance of test result in test tube are incorrect