ISBB Flashcards
Most potent phagocytic cell, most effective at antigen presentation
DENDRITIC CELLS
Person submitting urine for drug test
DONOR /CLIENT
Major advantage of gel technology
STANDARDIZATION
Connection between two blood vessels:
ANASTOMOSIS
hallmark rash of measles infection; bluish white spots with a red halo located on the buccal or labial mucosa
KOPLIK’S SPOTS (IN MEASLES)
Anti-smooth muscle antibodies (ASMA)
CHRONIC ACTIVE HEPATITIS
Anti-mitochondrial antibodies (AMA)
PRIMARY BILIARY CIRRHOSIS
Antigenic determinant
EPITOPE
Part of the antibody that binds to the antigen
PARATOPE
measures total IgE
RADIOIMMUNOSORBENT TEST (RIST)
measures allergen-specific IgE
RADIOALLERGOSORBENT TEST (RAST)
most common congenital immunodeficiency
SELECTIVE IgA DEFICIENCY
• Chickenpox and shingles
• Vaccine important in controlling outbreaks
• Tzanck stain: Giant cells
Varicella-Zoster Virus
• Isolated from blood, urine, throat
• In adults: Syndrome similar to mononucleosis, may infect kidney (shed in urine)
• In immunocompromised: Kidney, eye, lung, often fatal
Cytomegalovirus
• Heterophile-positive mononucleosis (85%)
• Can produce tumors
• Not isolated in culture
Serologic diagnosis
• Early antigen
• Viral capsid antigen: IgM and IgG
• Nuclear antigen
Epstein-Barr Virus
• Human parvovirus B-19 - infectiosum (fifth disease)erythema
• Infects bone marrow cells (erythrocyte) -Causes aplastic crisis
Parvoviruses
• Rare acquired disorder resulting from stem cell mutation in the PIGA gene
• Cells lack glycoslyphosphatidlyinositol anchored proteins, including CD55 and CD59
• RBCs are susceptible to complement lysis, because CD55 and CD59 inhibit complement and are absent, cells may lyse spontaneously
Paroxysmal Nocturnal Hemoglobinuria
COMPLEMENT COMPONENT _____ is the CENTRAL CONVERGENCE POINT for all complement activation pathways.
C3
may be stable in dried blood and blood products at 25°C for up to 7 days.
HBV
may be stable in dried blood and blood products at 25°C for up to 7 days.
HBV
retains infectivity for more than 3 days in dried specimens at room temperature and for more than 1 week in an aqueous environment at room temperature.
HIV
Two main functions of the serologic crossmatch test can be cited:
- It is a final check of ABO compatibility between donor and patient.2. It may detect the presence of an antibody in the patient’s serum that will react with antigens on the donor RBCs but that was not detected in antibody screening because the corresponding antigen was lacking from the screening cells.
SEQUENCE that UNIQUE AMINO ACID is common to all immunoglobulin molecules of a given class in a given species
ISOTYPE
: minor variation of sequences that are present in some individuals but not others
ALLOTYPE