Which statement correctly compares abdominal radiography's share of exams vs GSD?

Which statement correctly compares abdominal radiography's share of exams vs GSD?

• A. Accounts for 25% of exams and 30% of GSD
• B. Accounts for 25% of exams and 70% of GSD
• C. Accounts for 50% of exams and 70% of GSD
• D. Accounts for 50% of exams and 30% of GSD

Answer: (B)

Genetic Significant Dose weighs how much radiation exposure to the gonads contributes to hereditary risk, taking into account both how often an exam is done and how much gonadal dose each exam delivers. Abdominal radiography, while only about a quarter of all exams, tends to deliver a relatively high gonadal dose per exam because the gonads are often within or near the primary beam and shielding isn’t always perfect. That combination makes its impact on GSD disproportionately large, contributing around seventy percent, even though it’s only about twenty-five percent of exams. Other exams may be more frequent but deliver much less gonadal dose, so their share of GSD is smaller. Therefore, the statement that abdominal radiography accounts for about 25% of exams and about 70% of GSD is the best fit.

Genetic Significant Dose weighs how much radiation exposure to the gonads contributes to hereditary risk, taking into account both how often an exam is done and how much gonadal dose each exam delivers. Abdominal radiography, while only about a quarter of all exams, tends to deliver a relatively high gonadal dose per exam because the gonads are often within or near the primary beam and shielding isn’t always perfect. That combination makes its impact on GSD disproportionately large, contributing around seventy percent, even though it’s only about twenty-five percent of exams. Other exams may be more frequent but deliver much less gonadal dose, so their share of GSD is smaller. Therefore, the statement that abdominal radiography accounts for about 25% of exams and about 70% of GSD is the best fit.