SBB Exam Questions with Complete Solutions Latest 2023/2024 Graded A+

SBB Exam Questions with Complete Solutions Latest 2023/2024 Graded A+. Chemicals that send signals between cells are - correct answer Cytokines Antibodies are made by what cells? - correct answer Plasma cells Where do B cells mature? - correct answer Bone Marrow Where do T cells mature? - correct answer Thymus Coating of a cell with antibodies or complement is called? - correct answer Opsonization CD4 + cells are? - correct answer T helper cells The specific chemical group that provokes an antibody response - correct answer Epitope Blood groups are made of two main kinds of chemicals - correct answer Proteins, carbohydrates What is the function of the FC piece of an immunoglobulin? - correct answer Monocyte binding What is the only Ig that crosses the placenta? - correct answer IgG What does 2-ME OR DTT do to IgM antibodies? - correct answer Destroys disulfide bonds Which is the secretory Ig? - correct answer IgA Which Ig is responsible for allergic reaction's? - correct answer IgE Which IgG subclass does not bind complement? - correct answer IgG4 Which IgG sub classes are most clinically significant? - correct answer IgG 1 & 3 What is isotype switching? - correct answer Example IgM switches to IgG What is the end point of complement activation? - correct answer Hole in cell At what stage of complement cascade is it amplified? - correct answer C3 activation What two ions are needed for complement activity? - correct answer Ca++ and Mg++ Name two complement components that are anaphylatoxins - correct answer C3a and C5a What is the minimum number of days a BBK specimen must be kept? - correct answer Seven days post transfusion Name two groups for which weak D testing is required - correct answer Donors, NB of D- Moms What is required for crossmatch specimen to be used longer than three days? - correct answer Known history, not pregnant or transfusion last three months What can be used to neutralize heparin? - correct answer Protamine sulfate If given Rh positive cells to Rh negative person, what does standards require? - correct answer A policy?(and a Rhig policy) Name three requirements for when blood must be irrradiated - correct answer TAGVHD risk; blood relative; HLA-matched Why can't you use an EDTA specimen for Donath Landsteiner test? - correct answer It wouldn't lyse C' What is meant by thermal amplitude? - correct answer How high temp of reaction What is ZZAP? - correct answer Ficin OR papain AND DDT What concentration of albumin is used as a serum control? - correct answer 6% What is the source Ficin? - correct answer Fig What lectin agglutinates ficin-treated cells? - correct answer Glycine soja (soy bean) What is the specificity of Phaseolus lunatus lectin? - correct answer A lima bean All acquired B cells were originally what type? - correct answer A Glycine soja also agglutinates what types of polyagg? - correct answer T(bacterial, low sialic acid). Tn (mutation)(also A lectins) Eosinophils are less effective for phagocytosis because... - correct answer Because of the smaller numbers present and their lack of digestive enzymes