The fоllоwing expоsure fаctors were used to rаdiogrаph the lumbar spine: 300 mA, 1/5 sec., 42" SID, 90 kVp, 12:1 grid in the table, 4" OID, 2 mm focal spot size, suspended respirations In the following problems, make adjustments: 1. Change mA to 500, using the original mAs and give new exposure time sec. Round to the hundredths place. 2. Change distance to 36" SID and give new mAs Round to the nearest whole number. 3. Using technique from the original technique, increase kVp by 15% and give new technique, while maintaining IR exposure: kVp (round to the tenths place) mAs (round to the nearest whole number)