Does a baby with diarrhea sunken fontanelles dehydration bacterium induced colitis antibiotics prescribed have acidosis or alkalosis when their pH is checked?

Acidosis.

Sunken fontanelles and diarrhea are both signs of dehydration. Dehydration can cause acidosis, which is a condition in which the pH of the blood is below normal. Antibiotics can also cause acidosis, especially in patients who are already dehydrated.