Age-related absorption changes can increase risk for gallstones due to what systemic change?

Age-related absorption changes can increase risk for gallstones due to what systemic change?

• A. Decreased GFR
• B. GI Tract Changes
• C. Cardiac Hypertrophy
• D. Osteoporosis

Answer: (B)

Age-related changes in the GI tract alter how fats and cholesterol are absorbed and how bile acids are recycled, which shifts bile composition toward higher cholesterol content. When fewer bile acids are reabsorbed efficiently, the liver compensates by secreting more cholesterol into bile, increasing cholesterol saturation and promoting stone formation. Slower GI transit with aging also reduces gallbladder emptying, leading to bile stasis that favors stone development. So the systemic change driving the increased gallstone risk is the GI tract alterations in absorption and enterohepatic circulation. Decreased GFR concerns kidney filtering and does not directly cause cholesterol stone formation. Cardiac hypertrophy and osteoporosis likewise don’t directly influence bile composition or gallbladder motility in a way that promotes gallstones.

Age-related changes in the GI tract alter how fats and cholesterol are absorbed and how bile acids are recycled, which shifts bile composition toward higher cholesterol content. When fewer bile acids are reabsorbed efficiently, the liver compensates by secreting more cholesterol into bile, increasing cholesterol saturation and promoting stone formation. Slower GI transit with aging also reduces gallbladder emptying, leading to bile stasis that favors stone development. So the systemic change driving the increased gallstone risk is the GI tract alterations in absorption and enterohepatic circulation.

Decreased GFR concerns kidney filtering and does not directly cause cholesterol stone formation. Cardiac hypertrophy and osteoporosis likewise don’t directly influence bile composition or gallbladder motility in a way that promotes gallstones.