Author Question: Which mechanisms are ways in which antibodies can protect the body by either destroying or ... (Read 74 times)

ap345 · **on:** Jun 25, 2018

Which mechanisms are ways in which antibodies can protect the body by either destroying or inactivating a particular antigen? (Select all that apply.)

a. Mechanically harming the antigen
b. Activating the complement system
c. Releasing chemicals that alter the envi-ronment of the antigen
d. Directly attacking the nucleus of the anti-gen
e. Forming organic chains that sweep out the antigen

Question 2

A patient is learning to use crutches on the stairs. Which action indicates that the patient needs further instruction?

a. The patient places the good leg on the step to be climbed first.
b. The patient places the affected leg on the step to be climbed first.
c. The patient places the crutches on the floor and uses a swing-through method to get to the next step.
d. The patient places the crutch on the af-fected side on the next step first.

asdfasdf · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

A, B, C
Antibodies destroy an antigen by mechanically harming it, activating the complement system, and releasing chemicals that alter the environment of the antigen.

Answer to Question 2

A
When climbing stairs with crutches, the patient should first stand at the foot of the stairs with weight on the good leg and crutches, put weight on the crutch handles, and then lift the good leg up onto the first step of the stairs. Weight should be placed on the good leg to lift the injured leg and crutches up to that step.