Which of the following is not a symptom of ketoacidosis?
a. decreased breathing rate
b. polyuria
c. fruity odor to breath
d. dehydration
e. electrolyte imbalance

Decreased breathing (a) is not a symptom of ketoacidosis.

Explanation:

Ketoacidosis is a condition involving the levated production of ketones in the organism, usually as a consequence of type 1 diabetes.

The build up of ketones in the blood is mostly due to the breakdown of fatty acids by the body to acquire energy. Since ketone is an organic acid, its high levels decrease blood pH leading to several symptoms.

Frequent urination (polurya), fruity odor to breath, dehydratation and electrolyte imbalance are some of the symptoms. Decreased breathing rate is not a symptom, actually, ketoacidosis leads to rapid breathing.

Increasing the rate of breathing reduces the amount of CO₂ in the blood, which increases its pH making it less acidic.