Final answer:
PhosLo is administered to reduce serum phosphate levels in patients with chronic kidney disease, thereby impacting the laboratory value of phosphorus.
Step-by-step explanation:
You are preparing to administer a dose of PhosLo to a patient with chronic kidney disease (CKD). This medication should have a beneficial effect on which laboratory value? The correct answer is D. Phosphorus. PhosLo is a calcium acetate medication that binds phosphate in the gastrointestinal tract and reduces serum phosphate levels in the blood, making it beneficial for patients with chronic kidney disease (CKD) who often have hyperphosphatemia, or elevated serum phosphate levels, due to decreased renal function.