A nurse is caring for a client in diabetic ketoacidosis (DKA). Which of the following is the priority intervention by the nurse?
A.
initiate a continuous IV insulin infusion
B.
Begin bicarbonate continuous IV infusion
C.
Check potassium levels
D.
Administer 0.9% sodium chloride
The correct answer and Explanation is :
The priority intervention for a nurse caring for a client in diabetic ketoacidosis (DKA) is D. Administer 0.9% sodium chloride.
Explanation
Diabetic ketoacidosis (DKA) is a serious complication of diabetes characterized by hyperglycemia, ketosis, and metabolic acidosis. It requires immediate medical intervention to address the complex metabolic imbalances and restore normal physiology.
- Fluid Resuscitation with 0.9% Sodium Chloride: The first priority in managing DKA is to address the fluid deficit and restore intravascular volume. Patients with DKA often present with significant dehydration due to osmotic diuresis caused by hyperglycemia. Administering 0.9% sodium chloride (normal saline) helps to rehydrate the patient, improve tissue perfusion, and enhance renal function to promote glucose and ketone excretion. Fluid replacement is crucial because it helps to stabilize blood pressure, supports kidney function, and prepares the body for effective insulin therapy.
- Insulin Infusion: While initiating a continuous IV insulin infusion (Option A) is critical for reducing blood glucose levels and stopping ketogenesis, it should follow fluid resuscitation. Insulin helps to lower blood glucose and reverse ketosis, but its efficacy is diminished if the patient is severely dehydrated or hypotensive.
- Bicarbonate Infusion: The use of bicarbonate (Option B) is controversial and typically not a first-line treatment for DKA. It may be used in severe cases of metabolic acidosis, but its role is secondary compared to fluid and insulin therapy. The primary treatment focuses on correcting the underlying causes rather than solely addressing the pH imbalance.
- Checking Potassium Levels: Monitoring potassium levels (Option C) is important because insulin treatment and fluid therapy can affect potassium balance. However, this is part of ongoing management rather than the initial priority. Potassium levels need to be frequently assessed and corrected as necessary, but addressing fluid volume and insulin therapy comes first.
In summary, administering 0.9% sodium chloride is the most immediate and critical intervention for managing DKA, as it addresses dehydration and supports subsequent treatment efforts.