part 5 Flashcards
What is the most common symptom of pediculosis capitis (head lice)?
scalp itching: very common in school age children
How long does the adult louse pediculosis capitis (head lice) live without a human host?
- 48 hours without a human host
- female louse has a lifespan for 30 days
- females lay the nits at the base of the hair shaft
- nits hatch every 7 to 10 days
Explain the treatment time for pediculosis capitis (head lice)?
- after initial treatment, treat again in 7-10 days
- because nits hatch every 7-10 days
- OTC permethrin 1% (NIX) and removal of nits with fingers and comb
- may return to school after proper treatment
How can pediculosis capitis (head lice) be passed?
- interaction with playmates
- cross transfer from articles of clothing
- person to person or personal items
What are the 5 types of nonspecific immunity?
-First Line of defense: (functional at birth, reaction is similar to all invaders) Skin and Mucous membranes antimicrobial chemicals natural killer cells phagocytosis inflammation and fever.
What is the second line of defense for immune functions?
- specific immune response
- not functional at birth, must be learned by the body
- not fully functional until a child is 6 years
- antibody producing ability of B-cells
What are the 4 types of Vaccines?
- Live (attenuated viruses)
- killed (inactivated viruses)
- toxoids
- human immune globulin
This involves the body’s formation of antibodies in response to exposure to an antigen.
active immunity
This is temporary immunity achieved by the administration of antibodies produced by another individual.
passive immunity
This describes the time between exposure to the disease and disease outbreak; during this time the child may be contagious.
incubation period
This is the period when the organism can move from the host to another individual.
period of communicability
This is the time between the initial symptoms and the presence of the full blown disease
prodromal period
