Multiple choice

Directions: Choose a correct option from the following. Stones formed in human kidney consist mainly of

  1. iron oxide

  2. magnesium oxide

  3. calcium oxalate

  4. lead oxide
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Kidney stones are most commonly composed of calcium oxalate. These form when high levels of calcium and oxalate are present in the urine.

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