24 Questions
What is the most common cause of acute lymphadenitis?
Bacterial infection
Which disorder is characterized by a decrease in circulating neutrophils to a severe level of less than 500/mm?
Severe neutropenia
What is the most common cause of autoimmune neutropenia?
Neutrophil antibodies
Which syndrome is characterized by exocrine pancreatic insufficiency, bone marrow dysfunction, and skeletal abnormalities?
Shwachman-Diamond Syndrome
What is the most common cause of eosinophilia?
Allergic reactions
Which cell type contains histamines and heparin?
Basophils
What is the main function of B cells?
Responsible for humoral immunity
What is the characteristic feature of toxic granulation in white cells?
Seen in severe infection/inflammatory states
What is the primary function of neutrophils?
Immobilize or kill pathogens through releasing neutrophil extracellular traps (NETs)
What is the characteristic feature of Dohle bodies in white cells?
Remnants of rough ER
What is the most common cause of monocytosis?
Neoplastic lesions
What is the characteristic feature of leukemoid reaction in white cells?
á immature cells, particularly more myelocytes than in left shift
Which condition is characterized by a decrease in circulating neutrophils to a mild level of 1000-1500/mm?
Neutropenia
What is the characteristic feature of Chediak-Higashi Syndrome?
Recurrent bacterial infections and abnormal NK function
What is the most common cause of eosinophilia?
Parasite infections
Which disorder is characterized by a defect in bone marrow stroma and stem cells, exocrine pancreatic insufficiency, and skeletal abnormalities?
Shwachman-Diamond Syndrome
What is the main function of basophils?
Contain histamines (vasodilation) and heparin (anticoagulant)
What is the characteristic feature of Dohle bodies in white cells?
Remnants of Rough ER
What is the primary function of T cells?
Mature in thymus and responsible for cell-mediated immunity
What is the most common cause of monocytosis?
Neoplastic lesions especially myeloproliferative disorders
What is the characteristic feature of toxic granulation in white cells?
Seen in severe infection/inflammatory states
What is the primary function of B cells?
Responsible for humoral immunity
What is the characteristic feature of leukemoid reaction in white cells?
á immature cells, particularly more myelocytes than in left shift
What is the most common cause of acute lymphadenitis?
Bacterial infection
Test your knowledge of benign disorders of white blood cells with this quiz on leukopenia. Explore the different types of leukopenia, such as neutropenia and lymphocytopenia, and understand the varying degrees of severity. Delve into the implications of low white blood cell count and the increased risk of infection.
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