a young girl is exposed to brown recluse spider toxin. Blood tests confirm the presense of IgG antibodies against platelets, and she is diagnosed with thrombocyropenia. Which arm of the immune system has failed and which cells are responsible for this failure to recognize self from other
Added by Shawn H.
Step 1
The presence of IgG antibodies against platelets indicates an autoimmune response, where the immune system mistakenly targets the body's own cells. Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 78 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
a 54 year old female develop an autoimmune disease what did her t cells fail
Madhur L.
I need help, please. When hematopoietic stem cells are collected before radiation treatment, then given back to the same patient after radiation treatment, this is called what? Allogeneic transplant Autologous transplant Syngeneic transplant Monoclonal antibody therapy Name the disease: Expression of tissue-specific genes in the thymus is defective, resulting in polysyndromic autoimmune disease. Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) Hashimoto's disease Graves' disease Type I diabetes Systemic lupus erythematosus (SLE) is characterized by intermolecular epitope spreading because: CD4 T cells recognize one epitope on a molecule that confers reactivity to an epitope recognized by CD8 cells CD4 T cells bind to the same epitope sequence that is repeated within one molecule CD4 T cells recognize the same epitopes spread across different molecules CD4 T cells specific for one epitope of a macromolecular complex can provide help to B cells specific for another accessible epitope of the complex Which statement about systemic anaphylaxis is incorrect? It results from an antigen in the bloodstream causing widespread mast cell activation It is a rapid process in sensitized people It is triggered by an underlying Th2 response Its effects can be severe, even lethal Genetic polymorphisms are known to be important in susceptibility to allergy. Which genes are unlikely to influence susceptibility to Type I hypersensitivity? HLA-A, HLA-B, and HLA-C genes HLA-DP, HLA-DQ, and HLA-DR genes IL-4 receptor gene IgE receptor gene
Adi S.
A 10-year-old girl was taken to an outpatient clinic with a complaint of a sore throat and a lump in her neck. Upon examination, she was observed to have a tonsillar abscess, swollen glands, and widespread bruising in the extremities. She also had a low-grade fever. She was treated with antibiotics and released, but she failed to progress in the next 2 days. Her blood tests revealed a white count of 8.0 x 10^9/L, a hematocrit of 28%, and a platelet count of 10,000. Her parents were contacted, and she was immediately admitted to the hospital. A bone marrow examination was performed and revealed an infiltration of blast cells in the marrow. Why are her other cell counts depressed?
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD