A client with chronic renal failure asks a nurse about the role of the glomerulus in kidney function. Which of the following responses by the nurse is correct?

A) Correct. Peripheral neuropathy, characterized by tingling sensations or "pins and needles" in the hands and feet, is a common neurological complication of chronic renal failure. Uremic toxins build up in the blood when the kidneys are unable to adequately filter waste products, leading to nerve damage and peripheral neuropathy.

B) Incorrect. Increased blood flow to the extremities is not typically associated with the "pins and needles" sensation described by the client.

C) Incorrect. Adequate nerve conduction related to calcium levels would not cause the "pins and needles" sensation; instead, disturbances in calcium levels can lead to other neurological symptoms.

D) Incorrect. Hypokalemia, or low potassium levels, can cause muscle weakness or cramps but is not typically associated with peripheral neuropathy.

A) Incorrect. Phosphate binders are not used to reduce calcium absorption. They are specifically prescribed to control phosphate levels in the blood.

B) Correct. Phosphate binders are medications that bind to dietary phosphorus in the digestive tract, preventing its absorption and reducing phosphate levels in the blood. This helps manage hyperphosphatemia, a common complication in chronic renal failure.

C) Incorrect. Phosphate binders do not improve iron absorption or manage anemia. They are not related to iron metabolism.

D) Incorrect. Phosphate binders do not affect potassium excretion. They are specific to phosphate control in the body and do not impact potassium levels.