How does PTH affect calcium and phosphate handling in the kidney?

How does PTH affect calcium and phosphate handling in the kidney?

• A. Increases calcium reabsorption in the distal tubule and increases phosphate reabsorption in the proximal tubule
• B. Increases calcium reabsorption in the distal tubule and decreases phosphate reabsorption in the proximal tubule
• C. Decreases calcium reabsorption in the distal tubule and increases phosphate reabsorption in the proximal tubule
• D. Decreases calcium reabsorption in the distal tubule and decreases phosphate reabsorption in the proximal tubule

Answer: (B)