Jamal receives a blood transfusion of the wrong blood type. Antibodies in Jamal's plasma will bind to antigens on the donor red blood cells and cause clumping of the cells. This reaction is called
precipitation
agglutination
chemotaxis
opsonization
The Correct Answer is B
A. Precipitation: precipitation refers to antigen–antibody complexes forming an insoluble precipitate from soluble antigens, not clumping of whole cells.
B. Agglutination: agglutination is the clumping of cells (like RBCs) when antibodies bind surface antigens, which is what happens in an incompatible transfusion.
C. Chemotaxis: chemotaxis is directed movement of leukocytes toward chemical signals, not antibody-mediated clumping.
D. Opsonization: opsonization is coating a pathogen or cell with molecules (e.g., antibodies, complement) to enhance phagocytosis, not the visible clumping seen in agglutination.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Monocytes: Agranulocyte -large cell with a kidney/bean-shaped nucleus that differentiates into macrophages in tissues.
B. Neutrophils: Granulocyte -multilobed nucleus and cytoplasmic granules; primary phagocytes in acute inflammation.
C. Eosinophils: Granulocyte -bilobed nucleus with large eosin-staining granules; involved in parasitic infections and allergic reactions.
D. Basophils: Granulocyte -contains histamine/heparin-filled granules and participates in allergic/inflammatory responses.
Correct Answer is A
Explanation
A. 7.3 to 7.5: Correct (closest choice) -normal arterial blood pH is about 7.35–7.45, so 7.3–7.5 best matches the normal range given.
B. 7.6 to 7.8: this is alkalotic and well above normal physiologic range.
C. 6.8 to 7.0: this is severely acidotic and below normal.
D. 7.0 to 7.2: still acidotic and below the normal physiological range.
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