Author Question: A student asks the instructor how vaccines provide active immunity. The instructor's best answer ... (Read 78 times)

deesands · **on:** Jul 23, 2018

A student asks the instructor how vaccines provide active immunity. The instructor's best answer explains that active immunity is provided by stimulating production of antibodies to what?

A) A bee sting
B) A specific protein
C) A foreign substance in the body
D) A snake bite

Question 2

The nurse administers polymyxin B to a patient with a gram-negative bacterial infection. What symptoms would cause the nurse to suspect drug fever, hold the medication, and call the health care provider immediately? (Select all that apply.)

A) Fever
B) Dizziness
C) Ataxia
D) Increased activity
E) Reduced urine output

mjenn52 · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

B
Feedback:
Vaccines provide active immunity by stimulating production of antibodies to a specific protein, which may produce the signs and symptoms of a mild immune reaction, but it protects the person from the more devastating effects of disease. This protein may be a foreign substance, a bee sting, or a snake bite, but these answers are too narrow in focus.

Answer to Question 2

A, B, C, E
Feedback:
The actions of polymyxin B on cell membranes means it can be toxic to the human host, leading to nephrotoxicity, neurotoxicity (e.g., facial flushing, dizziness, ataxia, paresthesias, drowsiness), and drug-related fever and rash. This drug is reserved for infections that do not respond to less toxic drugs; the nurse needs to be alert for serious reactions and hold the drug until notifying the provider.