Intraosseous lines require full and careful immobilization because:
A. they rest at a 90° angle to the bone and are easily dislodged.
B. even when properly placed, the catheter easily moves back and forth.
C. the needle is only ¼" long and is not firmly in the bone.
D. insertion of the intraosseous catheter causes fracture of the bone.
Answer: A. they rest at a 90° angle to the bone and are easily dislodged.
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