Agglutination - Study guides, Class notes & Summaries

APHY 201 Lab exam 2 agglutination Clumping of microorganisms or blood cells, typically due to an antigen-antibody interaction. Means that the marker is present. unoppette system collects and dilutes the blood to perform a RBC count hemocytometer a grid that counts the RBC after they have been collected and diluted by the unoppette. Tallquist test stick your finger, put blood on paper, match blood color with the color scale paper. uses a color hemoglobin scale to estimate th...

neutralization antibodies block spike proteins and prevent viruses from binding to cell receptors agglutination - antibodies "stick bacteria together" - large clump is easier for phagocyte to recognize opsonization - "eat me" tags - C3b and antibodies - enhance phagocytosis complement activation classical pathway initiated by antibody binding ag for destruction - NK cells kill bacteria/infected cell - ADCC (antibody dependent cellular cytotoxicity) - antibodies serve as re...

Naked Virus Correct Answer-A virus without an enclosing envelope, consisting only of a nucleocapsid Capsid Correct Answer-The protein shell of a virus that encloses its genetic material Icosahedral Symmetry Correct Answer-Is a limited (closed) structure and allows packaging of only limited genome sizes Quasi-Equivalence Correct Answer-The relationships between capsid proteins structures are similar but not identical Haemagglutination Correct Answer-Is a specific form of agglutination...

NR 507 Midterm Advanced Pathophysiology Exam Latest 2024 Questions and Verified Answers 100% Correct 2024/ 2025 Chamberlain Hypersensitivity:Type 1:-Mediated IgE -inflammation due to mast cell degranultion -anaphylactic, asthma, hay fever treatment: epinephrine 2. Hypersensitivity:Type 2: -Cytotoxic reaction: tissue specific -binds to the antigen ON THE CELL SURFACE -macrophages are primary effectors cells involved cause tissue damage or alter function 3. Hypersensitivity 2: -Graves Dise...

Microbiology- PVCC Exam 4 Questions and Answers HIV causative agent - Answer-human immunodeficiency virus retrovirus- Genus Lentivirus HIV pathogenesis - Answer-Viral life cycle -HIV enters a mucous membrane or the skin -travels to dendritic cells beneath the epithelium -Virus grows inside the dendritic cell and is shed without killing the cell -virus is amplified by macrophages in the skin, lymph organs, bone marrow, and blood -virus infects and destroys helper T4 and CD4 lymphocyte...

Innate immunity (RENIN) - Nonspecific Natural resistance from birth Rapid generalized response Each exposure is similar Recognizes non-self Involves: Physical/anatomical body, Chemical agents, Inflammatory process Adaptive Immunity (IS AIR) - Amplified and targeted to a specific antigen Slower response but more effective Recognize, seek and destroy Involves T and B lymphocytes Imperfect system allowing some microbes to develop resistance to immunity system Adaptive immunity characteri...

Hypersensitivity: Type 1 <~~> -Mediated IgE -inflammation due to mast cell degranultion -anaphylactic, asthma, hay fever treatment: epinephrine Hypersensitivity: Type 2 <~~> -Cytotoxic reaction: tissue specific -binds to the antigen ON THE CELL SURFACE -macrophages are primary effectors cells involved cause tissue damage or alter function Hypersensitivity 2 <~~> -Graves Disease (hyperthyroidism) -alters function not destroy -blood transfusions reaction- t...

To correctly report a colony count in a urine culture plated using a calibrated 0.001 mL loop, the observed colony count must be multiplied by which of the following? a. 1 b. 100 c. 1000 d. 2000 c. 1000 Examination of peripheral blood smear revealed 12 nucleated erythrocytes per 100 leukocytes. Which histogram observation correlates with this finding? a. Failure of the granulocyte population to return to baseline on the leukocyte histogram b. Shift to the left of the erythrocyte po...

Microbiology Exam 4 Practice Questions With 100% Correct Questions And Answers Which of the following is NOT an advantage of live attenuated vaccine agents? a. They elicit lifelong immunity b. They stimulate by cell-mediated and humoral immune responses c. They never revert to virulent forms d. They require few or no booster immunizations e. The immune response generated by the vaccine closely mimics a real infection. - c. they never revert to virulent forms In order to view Treponem...

NBME CBSE REAL EXAM 200 QUESTIONS AND ANSWERS LATEST (usmle step 1)MEDICAL EXAMINATION 70yo M dies in a motor vehicle collision. Was undergoing evaluation for occult blood in the stool. Photo of transverse colon shown. Dx? Tubular adenoma or villous polyp. GI blood loss suggests a risk for malignancy 38yo M truck driver with 1-week hx of watery, itchy eyes and a runny nose. Physical shows inflamed nasal mucosa. No congestion in lower lung. Pharmacotherapy? Loratadine--> less sedatin...