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24june2019 paper1 Q47

0. Assertion (A): Methemoglobinemia is a condition in which blood is not able to carry and deliver enough oxygen to the body.
Reason (R): Consuming drinking water with high nitrate levels may cause methemoglobinemia.

Choose the correct answer from the options given below:

  • Option : A
  • Explanation : Methemoglobinemia is a blood disorder in which an abnormal amount of methemoglobin is produced. Methemoglobin is a form of hemoglobin. With methemoglobinemia, the hemoglobin can carry oxygen, but is not able to release it effectively to body tissues. Methemoglobinemia is passed down through families (inherited or congenital) and it is also caused by the exposure to certain medicines, chemicals, or foods (acquired).
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