A patient's status post hypophysectomy had drainage on the mustache dressing. Which complication is this patient at risk for if the glucose level of the drainage is 50 mg/dL?

A. Cerebral edema is the most dangerous complication associated with the administration of hypotonic fluids in patients with diabetic ketoacidosis (DKA). This occurs because hypotonic fluids cause rapid shifts in fluid and electrolytes, which can lead to swelling of the brain, especially in children. The risk is heightened if fluids are replaced too quickly.
B. Polyuria is a common symptom of diabetic ketoacidosis due to high blood glucose levels and osmotic diuresis, but it is not caused by hypotonic fluid administration.
C. Hypokalemia is a potential risk in DKA but typically arises from the shift of potassium from the extracellular to intracellular space during treatment, especially with insulin administration, not from the use of hypotonic fluids.
D. Metabolic acidosis is a hallmark of diabetic ketoacidosis itself and is caused by the accumulation of ketones. It is not caused by hypotonic fluid replacement.

A. A peak flow of more than 40% would indicate that the patient's asthma is not in an acute exacerbation. This patient's symptoms, such as confusion and inability to speak, suggest a severe asthma attack, and the peak flow would likely be much lower.
B. Bradycardia is not typically associated with severe asthma exacerbations. Tachycardia is more commonly observed as the body attempts to compensate for hypoxia.
C. Loud and prominent wheezing is usually seen in less severe cases of asthma. In this case, the inability to speak and confusion suggest severe respiratory distress, where wheezing might be diminished or absent due to poor air movement.
D. Deteriorating arterial blood gas (ABG) results, with low oxygen levels (hypoxemia) and elevated carbon dioxide levels (hypercapnia), would be expected in a patient with severe asthma exacerbation. These signs indicate respiratory failure and the need for urgent intervention.