PRINCIPLES OF IMAGING - Midterms (Part 2)

compute for mAs if mA = 100 and time = 0.25 s

• 25 mAs
• 2.5 mAs
• 0.25 mAs
• 250 mAs

compute for mA if mAs = 50 and time = 100 s

• 500 mA
• 5 mA
• 0.5 mA
• 50 mA

compute for time if mA = 50 and mAs = 15

• 0.3 s
• 3 s
• 0.33 s
• 33 s

using the 15% Rule find the New mAs if ; Initial kVp = 70, Initial mAs = 10 , New kVp = 70 + 15% =

• 5 mAs
• 0.5 mAs
• 55 mAs
• 50 mAs

using the 15% Rule find the New mAs if ; Initial kVp = 80, Initial mAs = 100 , New kVp = 80 - 15% =

• 200 mAs
• 2 mAs
• 20 mAs
• 0.2 mAs

using the 15% Rule find the New mAs if ; Initial kVp = 75, Initial mAs = 35 , New kVp = 75 + 2(15%) =

• 8.75 mAs
• 87.5 mAs
• 875 mAs
• 0.875 mAs

compute for New mA if; Initial mA = 100, initial SID = 40 in , new SID = 72 in

• 324 mA
• 32.4 mA
• 3.24 mA
• 0.324 mA

compute for New time if; Initial time = 0.5 s , initial SID = 60 in and New SID = 25 in

• 0.0868 s
• 0.868 s
• 8.68 s
• 86. 8 s

compute for New mAs if; Initial mAs = 125 , initial SID, 56 in, New SID is 40

• 63.78 mAs
• 637.8 mAs
• 6378 mAs
• 6.378 mAs

compute for new mAs if; no grid, initial mAs = 10, add 8:1 grid

• 40 mAs
• 4 mAs
• 0.4 mAs
• 44 mAs