NURS 3366 Exam 2 REVISION QUESTIONS AND ALL CORRECT ANSWERS (ALREADY GRADED A+) (2024 UPDATE) 100% GUARANTEED
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Course
NURS 3366
Institution
NURS 3366
Innate resistance? - ANSWER- natural- mechanisms born with
What are the 1st, 2nd and 3rd lines of defense in innate resistance? - ANSWER- 1st- physical
barriers (skin); immediate & nonspecific
2nd- inflammation; immediate and nonspecific
3rd- Acquired (adaptive) immunity
Acquired (adaptive) im...
What is the second line of defense- inflammation characterized by? - ANSWER- -swelling
-heat
-erythema (redness)
-pain
-if not enough will bring in 3rd line of defense- acquired immunity
What are B and T cells? - ANSWER- T lymphocytes- defend body by direct attack against
invaders
,B lymphocytes- defend body by differentiating into plasma cells, creating antibodies and will now
"lay in wait" and always "remember"
Antigens? - ANSWER- proteins that can stimulate immunocyte reaction against them
-normal for body to respond to antigens that are foreign to our body, but abnormal to respond to
self antigens
Antibodies? - ANSWER- IgG, IgA, IgE
-proteins that respond with specificity according to type of antigen entering body
What is active acquired immunity? - ANSWER- person own immunocyte system developed
the antibodies that established immunity
Natural active acquired immunity? - ANSWER- persons plasma cells build up antibodies in
response to microbially-induced sickness
Artificial active acquired immunity? - ANSWER- persons plasma cells build up antibodies in
response to receiving immunization
booster can be given for MMR because antibodies become weaker over time
Passive acquired immunity? - ANSWER- given someone elses antibodies and did not develop
the antibodies on their own
, Natural passive acquired immunity? - ANSWER- transfer of antibodies from mom to baby via
placenta (MatAb antibodies cross placental membrane from her blood to fetus and disintegrate by
time baby is 2-3 months old) or breast milk (some MatAbs can transfer during breast feeding but
after baby stops breastfeeding, MatAbs disintegrate)
temporary antibodies!!
Artificial passive acquired immunity? - ANSWER- antibodies are injected during treatment in
emergencies until active immunity can develop
ex: TIG (tetanus immunoglobin) given to pt with dirty would who has never had tetanus/has not
had booster in long time
What are advantages and disadvantages of passive immunity? - ANSWER- advantages:
-powerful to immediately fight disease
-immediately begin attacking microbes
disadvantages:
-only lasts as long as antibody lasts- about 2 weeks
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