What vital sign should be monitored every 500mL during the treatment of DKA?

Monitoring blood pressure every 500 mL during the treatment of Diabetic Ketoacidosis (DKA) is critical due to the potential risks associated with fluid resuscitation. In DKA patients, there is often significant dehydration and electrolyte imbalances, which can lead to cardiovascular instability. As fluids are administered, it is essential to observe changes in blood pressure to assess the patient's response to the treatment, ensure that the cardiovascular system is tolerating the added volume, and avoid potential complications such as fluid overload.

Blood pressure provides vital information about the patient's hemodynamic status. If the blood pressure rises significantly, it may indicate a positive response to fluid resuscitation, while a drop in blood pressure may signal inadequate fluid volume or an ongoing loss of fluid into the tissues or third spaces.

Although monitoring heart rate, respiratory rate, and body temperature is important in assessing the overall health and condition of a DKA patient, these parameters do not provide as direct an indication of the response to fluid therapy as blood pressure does. Therefore, focusing on blood pressure during fluid resuscitation is crucial for effective management of patients experiencing DKA.