A 78-Year-Old Female Patient Is Admitted to a Medical-Surgical Unit

A 78-year-old female patient is admitted to a medical-surgical unit with left lower extremity pain and discoloration.The patient's laboratory values are: hemoglobin 12 g/100 mL,hematocrit 37%,glucose 110 mg/dL,potassium 6.5 mEq/L,BUN 60 mg/dL,and creatinine 3.2 mg/dL.Which statement by the nurse represents a clear understanding of this patient's pain management needs?

A) "This patient may need more pain medication because of anemia."
B) "This patient may need less pain medication because of acute renal failure."
C) "This patient may need less pain medication because of diabetes mellitus."
D) "This patient will need potassium replacement before pain treatment begins."