What medication would the nurse prepare to give to reduce shivering in a hyperthermic client?

A. Assess the fistula with a large bore needle: Large bore needles are used during dialysis sessions, not for routine assessment. Inappropriate needling can damage the fistula.

B. Auscultate the fistula site for a bruit: A functional AV fistula should have a palpable thrill (vibration) and an audible bruit (whooshing sound) when auscultated with a stethoscope. These findings confirm adequate blood flow and patency.

C. Measure the blood pressure in the affected arm: Blood pressure measurements should never be taken on the fistula arm to prevent compression and potential fistula failure.

D. Assess the rate and quality of the radial pulse on the affected arm: The radial pulse does not accurately assess AV fistula patency; the focus should be on the thrill and bruit.

A. Respiratory Acidosis: Respiratory acidosis results from inadequate ventilation leading to CO₂ retention, which is unrelated to kidney failure.

B. Metabolic Alkalosis: Metabolic alkalosis occurs due to excessive loss of acids (e.g., vomiting) or excess bicarbonate intake. Acute renal failure causes acid retention, not loss.

C. Respiratory Alkalosis: Respiratory alkalosis is caused by hyperventilation and excessive CO₂ loss, not renal dysfunction.

D. Metabolic acidosis: The kidneys play a vital role in acid-base balance by excreting hydrogen ions and reabsorbing bicarbonate. Acute renal failure impairs these functions, leading to acid retention and metabolic acidosis.