SBB Questions and Answers Rated A+

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SBB Questions and Answers Rated A+ Chemicals that send signals between cells are -✔✔ Cytokines Antibodies are made by what cells? -✔✔ Plasma cells Where do B cells mature? -✔✔ Bo... ne Marrow Where do T cells mature? -✔✔ Thymus Coating of a cell with antibodies or complement is called? -✔✔ Opsonization CD4 + cells are? -✔✔ T helper cells The specific chemical group that provokes an antibody response -✔✔ Epitope Blood groups are made of two main kinds of chemicals -✔✔ Proteins, carbohydrates What is the function of the FC piece of an immunoglobulin? -✔✔ Monocyte binding What is the only Ig that crosses the placenta? -✔✔ IgG What does 2-ME OR DTT do to IgM antibodies? -✔✔ Destroys disulfide bonds Which is the secretory Ig? -✔✔ IgA Which Ig is responsible for allergic reaction's? -✔✔ IgE Which IgG subclass does not bind complement? -✔✔ IgG4 Which IgG sub classes are most clinically significant? -✔✔ IgG 1 & 3 What is isotype switching? -✔✔ Example IgM switches to IgG What is the end point of complement activation? -✔✔ Hole in cell At what stage of complement cascade is it amplified? -✔✔ C3 activation What two ions are needed for complement activity? -✔✔ Ca++ and Mg++ Name two complement components that are anaphylatoxins -✔✔ C3a and C5a What is the minimum number of days a BBK specimen must be kept? -✔✔ Seven days post transfusion Name two groups for which weak D testing is required -✔✔ Donors, NB of D- Moms What is required for crossmatch specimen to be used longer than three days? -✔✔ Known history, not pregnant or transfusion last three months What can be used to neutralize heparin? -✔✔ Protamine sulfate If given Rh positive cells to Rh negative person, what does standards require? -✔✔ A policy?(and a Rhig policy) [Show More]

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