What two types of hearing loss are associated with noise?
A) acoustic trauma and noise induced
B) high frequency and low frequency
C) high frequency and acoustic trauma
D) noise induced and low frequency correct an
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What two types of hearing loss are associated with noise?
A) acoustic trauma and noise induced
B) high frequency and low frequency
C) high frequency and acoustic trauma
D) noise induced and low frequency correct answers Ans: A- acoustic trauma and noise induced
A hypersensitivity reaction that produces an allergic response is called:
A) hemolytic shush
B) anaphylaxis
C) necrotizing vasculitis
D) systemic erythematosus correct answers Ans: B- anaphylaxis
Which cytokine is produced and released from virally infected host cells?
A) IL-1
B) IL-10
C) tumor necrosis factor-alpha (TNF-a)
D) interferon-alpha (IFN-a) correct answers Ans: D- interferon-a
Which T-lymphocyte phenotype is the key determinant of childhood asthma?
A) CD4 helper T1 (Th1) lymphocytes
B) CD4 helper T2 (Th2) lymphocytes
C) CD8 cytotoxic T (Tc) lymphocytes
D) memory T lymphocytes correct answers Ans: B- CD4 helper T2 (Th2) lymphocytes
Some older adults have impaired inflammation and wound healing because of which problem?
A) the circulatory system cannot adequately perfuse tissues
B) complement and chemotaxis are deficient
C) underlying chronic illnesses exist
D) the number of mast cells is insufficient correct answers Ans: C- underlying chronic illnesses exist
The role of cytokines in cell reproduction is that they:
A) provide growth factor for tissue growth and development
B) block the progress of cell reproduction through the cell cycle
C) restrain cell growth and development
D) provide nutrients for cell growth and development correct answers Ans: A- provide growth factor for tissue growth and development
Which characteristic is the most important determinant of immunogenicity when considering the antigen?
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