Symptoms of fatigue, low grade fever, and generalized muscle aches would most likely be present in which stage of acute infection? A. Incubation B. Convalescence C. Acute clinical illness D. Prodromal
Which of the following statements best describes the role of IgG? It: A. stimulates mast cell release of histamine in allergic immune response. B. is the most prevalent circulating immunoglobulin. C. is the first immunoglobulin to proliferate during the immune response. D. is bound to and activates B cells.
Which leukocyte offers the greatest protection against parasites? A. Eosinophil B. Monocyte C. Basophil D. Neutrophil
As a knowledgeable nurse you know that hand washing is an important example of an action to break the chain of infection at which link? A. Portal of entry B. Susceptible host C. Means of transmission D. Reservoir
HIV infection impairs: A. humoral immunity. B. cell-mediated immunity. C. both humoral and cell-mediated immunity. D. neither humor nor cell-mediated immunity.
T lymphocytes mature and differentiate in the: A. bone marrow. B. lymph nodes. C. spleen. D. thymus.
The low grade fever,generalized muscle aches and fatigue are symptoms that usually accompany the convalescence stage in acute infections, hence, you need to select the answer B.
IgG represents the most abundant circulating antibody. The representation of the 4 subclasses of the IgG class, in the bloodstream, is the following: up to 70% IgG1, 20%-30% IgG2, up to 8% IgG3 and up to 3% IgG4. Hence, the answer B seems to be the most relevant.
The white blood cells are classified into 5 types, each of the 5 types fighting against bacterial, parasitic, viral and fungal infections. The 5 type of white blood cells are the following: lymphocytes, neutrophils, monocytes, basophils and eosinophils. The role of eosinophils is to fight against parasites and antigen complex identified in the bloodstream. Hence, you need to select the answer A.
The reduction of memory B lymphocytes in HIV-1 infection links with defective humoral immunity, hence HIV infection weakens the humoral immunity. You need to select the answer A.
There exists two types of lymphocytes: T cells and B cells. They are both produced in red bone marrow. While B lymphocytes remain and mature in bone marrow, the T lymphocytes leave the bone marrow and mature in thymus and that is why they are called T lymphocytes (from Thymus). Hence, you need to select the answer D.