Exam 4 - FINAL EXAM NP Flashcards
T/F: innate (natural) immunity needs no previous exposure to create an immune response
TRUE
How is acquired immunity produced
- vaccine
2. exposure to antigen
Which type of immunity, present at birth, remains for life?
Innate (natural)
Which type of immunity involves T-cells, B-cells and Natural Killer cells?
Acquired Immunity
T-cells are created where?
B-cells are created where?
T-cells - thymus
B-cells - bone
Which immunoglobulin is the first to respond to an antigen
IgM (iMmediate)
Which immunoglobulin lines the GI tract, respiratory tract , and GU tract
IgA
Eosinophils and which immunoglobulin respond to allergens and parasitic infections
IgE
Which immunoglobulin is high in acute infection
IgM
What are the actions of PRIMARY immune response
- antigen moved to lymph node
- virgin B cells respond and develop into antibody producing plasma cells
- IgM is made (memory cells)
What are the actions of SECONDARY immune response
- more rapid than primary response
2. NK cells take over
Neonates have higher B or T cells?
T- cells
neonates may develop antigen specific T-cell response
Neonates have a high susceptibility to what type of org.? why?
Gram negatives
IgM cannot cross the placenta
When does IgM reach adult levels?
Age 1
T/F antibodies are able to be created at birth
TRUE
what type of vaccines are needed for neonates
conjugated
Why do vaccines seem to be less effective in middle age
T-cell function declines in middle age
What are 4 pathways to contract hepatitis
- Drugs
- Poisons
- Idiopathic
- Autoimmune
What are 2 outcomes of an acute infection of hepatitis and how do you tell the difference
- Acute infection w/ recovery and immunity
- acute infection w/chronic disease
Difference: test for viral activity - will be active in chronic disease
S/S of acute viral hepatitis
- fatigue
- fever
- skin rash
- N/V
- arthralgia/myalgia
- abd pain
- jaundice
What may cause chronic viral hepatitis to exhibit symptoms
Stress
co-infection
Which transaminase is most specific for viral liver infections?
ALT
AST may be elevated in viral hepatitis but also what other types of disease
Heart
Liver
What labs should be ordered for suspected hepatitis
AST/ALT Alk Phos Bilirubin (direct/total) LDH CBC H/H Albumin Coags