The nurse is caring for an adolescent client diagnosed with type 1 diabetes. The client exhibits hot, dry skin and a glucose level of 350 mg/dL (19.4 mmol/L). Arterial blood gases show a pH of 7.27. STAT serum chemistry labs have been drawn. Cardiac monitoring shows a sinus rhythm with peaked T waves, and the client has minimal urine output. What is the nurse's next priority action?

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This client has diabetic ketoacidosis (DKA). All clients with DKA experience dehydration due to osmotic diuresis. Prompt and adequate fluid therapy restores tissue perfusion and suppresses the elevated levels of stress hormones. The initial hydrating solution is 0.9% saline infusion. (Option A) Insulin therapy should be started after the initial rehydration bolus as serum glucose levels fall rapidly after volume expansion. (Option C) Urinalysis is important but not a priority. (Option D) Potassium should never be given until the serum potassium level is known to be normal or low and urinary voiding is observed. Peaked T waves indicate hyperkalemia in this client. Clients with insulin deficiency frequently have increased serum potassium levels due to the extracellular shift despite having total body potassium deficit from urinary losses. Once insulin is given, serum potassium levels drop rapidly, often requiring potassium replacement. Potassium is never given as a rapid IV bolus, as cardiac arrest may result. Educational objective: Clients with diabetic ketoacidosis and hyperosmolar hyperglycemic state require IV normal saline as a priority due to severe dehydration. Once fluids are given as a bolus, insulin is initiated. The serum potassium levels can be elevated in the initial stages despite a low total body potassium. Potassium repletion is started once the serum potassium levels are normalized or trending low (from elevated levels).

The Nurse Is Caring for an Adolescent Client Diagnosed with Type