Immune Deficiency Disorders Flashcards
the body’s specific protective response to invading foreign agents
Immunity
Where do T and B cells maturate from?
Bone marrow
Where is lymphoid tissue found?
Spleen and lymph nodes
What are the functions of the immune system?
Remove foreign antigens like viruses and bacteria
Maintain homeostasis
What are the components of the immune system?
Bone marrow and lymphoid tissue
A nonspecific immune response to any foreign invader that provokes an inflammatory response and release of cell mediators like histamine and bradykinin
natural immunity
A specific reaction against a foreign antigen that can be active or passive
acquired immunity
Type of acquired immunity that is developed by the person’s own body after exposure to the antigen
Active
Type of temporary immunity that is transferred from a source outside of the body
Passive
Examples of passive immunity
Breastfeeding or immunization
What are the s/s of a primary immune deficiency disorder?
The body is unable to develop normal immune responses
Failure to thrive
Unusual infections
What does PIDD mean?
Primary immune deficiency disorders
How are PIDDs managed?
Meticulous infection control/hand hygiene
Monitor for early signs of infections
Teach pt and caregivers to give meds at home
What medications are given for PIDDs?
IVIG and SCIG to replace and provide functional antibodies
What cells does HIV target?
Cells with CD4 receptors such T lymphocytes, monocytes, dendritic cells, and brain microglia
What body fluids are capable of transmitting HIV?
Blood and blood products
Seminal fluid
Vaginal secretions
Mother to child - amniotic fluid and breast milk
Bleach can be used to clean dirty needles and syringes to prevent HIV transmission? True or False
True
How can HIV transmission be avoided?
Condoms (latex)
Be aware of status
Safe needle use
Artificial insemination
Refraining from breastfeeding
Antiretroviral therapy
Antiretroviral medications should be started within how many hours of HIV expsoure?
72 hrs
What is the treatment for post HIV exposure in healthcare workers?
2-3 drugs for 28 days
How often should post HIV exposure testing occur?
6 weeks
12 weeks
6 months
What are the 5 stages of HIV?
0, 1, 2, 3, unknown
What stages of HIV are based on the CD4 count?
1, 2, 3
Earliest stage of HIV infection that is inferred from lab testing
Stage 0