How much Dextrose 70% must be mixed with Dextrose 5% to prepare 1,000 mL of Dextrose 20%?

Bony structures with low mineral content

a. High subject contrast b. Low subject contrast

A vehicle has been struck in its front end by another car. The driver is entrapped, and the roof must be rolled back to allow extrication. The car has been appropriately stabilized and you are inside with the patient. The primary assessment is complete and a cervical collar applied. Rescue personnel are ready to begin cutting the vehicle. At this time, the appropriate action is to:

A) Place a tarp over the patient B) Remove the windshield C) Apply a short vest-type extrication device to the patient D) Stabilize the vehicle