Each subject will provide a fresh urine sample in an empty sterile plastic cup. Urinalysis will be performed to check for macro- or micro-hematuria or signs of infection. We will take 10mL of the urine sample and add 1mL of transparent (colorless) household bleach (≤5% sodium hypochlorite). The color of the urine before and 5 minutes after adding the bleach will be recorded.

Each subject will provide a fresh urine sample in an empty sterile plastic cup. Urinalysis will be performed to check for macro- or micro-hematuria or signs of infection. We will take 10mL of the urine sample and add 1mL of transparent (colorless) household bleach (≤5% sodium hypochlorite). The color of the urine before and 5 minutes after adding the bleach will be recorded.

Adding household bleach to urine sample

Following the addition of 1mL of 5% household bleach to a 10mL of each subject's urine, we will visually look for color change to red or orange within 5 minutes. Urine changing color to red or orange will be marked as a positive response to the bleach, which would fulfill the primary outcome.