When performing your secondary assessment on an older patient who has been injured, it is important to:
A. perform an in-depth physical exam prior to initiating any treatment.
B. routinely perform a focused exam to minimize time at the scene.
C. focus your assessment just on the area(s) of pain or obvious injury.
D. recall that it will take a less severe mechanism of injury to cause significant injuries.

You isolate an infectious substance capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, viroid, or prion. you have four methods at your disposal to analyze the substance and determine the nature of the infectious agent.i. treat the substance with enzymes that destroy all nucleic acids and then determine whether the substance is still infectious.ii. microscope.iii. culture the substance on nutritive medium, away from any plant cells.iv. treat the sample with proteases that digest all proteins and then determining whether the substance is still infectious.if you already know that the infectious agent was either bacterial or viral, which method(s) listed above would allow you to distinguish between these two possibilities? a) ib) iic) ii or iiid) iv