Which substance does the Azostix test measure?

Which substance does the Azostix test measure?

• A. Urea
• B. Creatinine
• C. Glucose
• D. Potassium

Answer: (A)

Azostix is designed to measure urea in urine. It uses urease to break down urea into ammonia and carbon dioxide; the ammonia increases the urine’s pH and causes a color change on the strip that correlates with urea concentration. That makes urea the substance being detected. Creatinine, glucose, and potassium require different tests or strips and are not detected by Azostix.

Azostix is designed to measure urea in urine. It uses urease to break down urea into ammonia and carbon dioxide; the ammonia increases the urine’s pH and causes a color change on the strip that correlates with urea concentration. That makes urea the substance being detected. Creatinine, glucose, and potassium require different tests or strips and are not detected by Azostix.