3. Diabetic ketoacidosis
A patient who has diabetic ketoacidosis has ketones in the urine. Rapid respirations, sighing breaths, numbness, and tingling inthe hands and feet, lightheadedness, and loss of consciousness are the signs of hyperventilation associated with diabetic ketoacidosis. The clinical manifestations of hypoxia include apprehension, restlessness, an inability to concentrate, decreased level of consciousness, dizziness, and behavioral changes. Clinical manifestations of hypoventilation include alterations in the mental status, dysrhythmias, and potential cardiac arrest. Hypoxia may result in a decline of the respiratory rate due to respiratory muscle fatigue.