What is a nursing priority for a patient presenting to the ED with a history of adrenal insufficiency and laboratory results showing Na 130, K 5.6, and glucose 72?

What is a nursing priority for a patient presenting to the ED with a history of adrenal insufficiency and laboratory results showing Na 130, K 5.6, and glucose 72?

• A. Administer insulin and dextrose in normal saline to shift potassium into cells
• B. Administer potassium supplements
• C. Administer diuretics
• D. Administer hydrocortisone infusion

Answer: (A)

In adrenal crisis, the immediate danger is the hyperkalemia from aldosterone deficiency, which can cause dangerous cardiac issues. The fastest way to reduce serum potassium is to give insulin with dextrose. Insulin drives potassium from the extracellular space into cells, lowering the current K+ level quickly, and the accompanying dextrose prevents hypoglycemia from the insulin. Using this approach in isotonic saline also supports volume status while you address the underlying problem. While hydrocortisone replacement and aggressive IV fluids are essential to treat the adrenal insufficiency, they do not lower potassium as rapidly as insulin with glucose. Potassium supplements would worsen the hyperkalemia, and diuretics are not the immediate solution in this unstable, volume-depleted patient. The key is to stabilize the potassium now, then proceed with definitive adrenal crisis management.

In adrenal crisis, the immediate danger is the hyperkalemia from aldosterone deficiency, which can cause dangerous cardiac issues. The fastest way to reduce serum potassium is to give insulin with dextrose. Insulin drives potassium from the extracellular space into cells, lowering the current K+ level quickly, and the accompanying dextrose prevents hypoglycemia from the insulin. Using this approach in isotonic saline also supports volume status while you address the underlying problem.

While hydrocortisone replacement and aggressive IV fluids are essential to treat the adrenal insufficiency, they do not lower potassium as rapidly as insulin with glucose. Potassium supplements would worsen the hyperkalemia, and diuretics are not the immediate solution in this unstable, volume-depleted patient. The key is to stabilize the potassium now, then proceed with definitive adrenal crisis management.