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Understanding Labeled Immunoassays Study Guide

This guide explains the fundamental concepts of autoimmune diseases, how the immune system malfunctions, and the various laboratory tests used to diagnose and monitor these conditions. It covers topics such as autoantibodies, immune complexes, and advanced diagnostic techniques like ELISA and PCR.

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Diagnosis of Immunoproliferative Disorders and B Cell Malignancies

Immunoproliferative Disorders and Laboratory Diagnosis

Review of immunoglobulins, antibody production, and the characteristics of diseases such as multiple myeloma and Waldenström’s macroglobulinemia using serum protein electrophoresis and immunofixation electrophoresis.

Immunoglobulin composition
Antibody production
Paraprotein
Myeloma protein
Multiple myeloma
Waldenström’s macroglobulinemia
Light chain disease
Heavy chain disease
Monoclonal gammopathy
Polyclonal gammopathy
Hypogammaglobulinemia
Serum protein electrophoresis
Immunofixation electrophoresis

Immunoproliferative Disorders and B Cell Malignancies

Distinguish B cell malignancies, plasma cell dyscrasias, and laboratory diagnostic results for immune disorders including multiple myeloma and Waldenstrom’s macroglobulinemia.

B cell malignancies
Leukemias
Lymphomas
Plasma cell dyscrasias
Multiple myeloma
Waldenstrom’s macroglobulinemia
Light chain disease
Heavy chain disease
Monoclonal gammopathy of undetermined significance (MGUS)
Monoclonal immunoglobulin
Paraprotein
Immunoglobulins
IgG
IgA
IgM
Free immunoglobulin light chains
Hyperviscosity
Rouleaux
Lytic bone lesions

Immunoproliferative Disorders and Protein Electrophoresis

Clinical manifestations of immunoproliferative disorders and laboratory procedures for serum protein electrophoresis and immunofixation electrophoresis.

Waldenstrom’s macroglobulinemia
Cold agglutinin autoimmune hemolytic anemia
Classical complement pathway activation
Serum protein electrophoresis
Immunofixation electrophoresis
Monoclonal gammopathy
Hypergammaglobulinemia
Polyclonal gammopathy
Hypogammaglobulinemia
Multiple Myeloma
Acute phase reactants
C-reactive protein

Immunoproliferative Disorders and Protein Analysis

Identification of monoclonal proteins in blood, urine, or cerebrospinal fluid using protein electrophoresis and immunofixation.

Protein electrophoresis (PEP)
Serum protein electrophoresis (SPEP)
Urine protein electrophoresis (UPEP)
Monoclonal protein
Multiple myeloma
Immunofixation
Heavy chain and light chain identification
IgG immunoglobulins
IgA lambda monoclonal immunoglobulin

Immunoassay Methods and Molecular Detection Techniques

Labeled Immunoassays Methods and Principles

Labeled immunoassays use a reporter molecule to detect antigens and antibodies through radioimmunoassays, enzyme immunoassays, fluorescent immunoassays, and chemiluminescent immunoassays.

Radioimmunoassays
Enzyme immunoassays
Fluorescent immunoassays (FIA)
Chemiluminescent immunoassays
Analyte
Reporter molecule
Competitive immunoassays
Noncompetitive immunoassays
Heterogeneous assays
Homogeneous assays
Standards and calibrators
Solid-phase separation
Chromogenic, fluorogenic, and luminescent end products

Clinical Applications of Labeled Immunoassays

Labeled immunoassays utilize direct and two step methods to detect antigens and antibodies through fluorescent tags or chemiluminescence.

Direct method
Two step method
Antigen detection
Antibody detection
Fluorescein tagging
Polarization of fluorescent light
Chemiluminescence
Indirect IFA

Polymerase Chain Reaction and DNA Amplification

This topic covers target DNA amplification through PCR, reverse transcriptase PCR, and detection methods including agarose gel electrophoresis and nucleic acid probes.

PCR
Reverse transcriptase PCR
Target DNA
Amplicon
Agarose gel electrophoresis
Nucleic acid probes
DNA synthesis
Fluorescence

Nucleic Acid Probes and PCR Methods

Pathogens are identified with nucleic acid probe and PCR methods to increase the number of DNA targets by repeatedly copying a specific DNA sequence.

nucleic acid probe
PCR
DNA polymerase
template DNA
primers
nucleotide bases
denaturation
extension reaction
pathogens

Principles and Clinical Applications of Labeled Immunoassays

This topic covers the principles, components, and clinical applications of labeled immunoassays including ELISA, immunochromatography, EMIT, immunofluorescent assays, RIA, and chemiluminescent methods.

Indirect ELISA
Sandwich or Capture Assay
Enzyme-Multiplied Immunoassay Technique
ImmunoFluorescent Assay (IFA)
Antigen-antibody interaction
Enzyme-labeled antigen
Enzyme-labeled antibody
Solid phase binding
Fluorescent tags
Clinical detection of HIV, Epstein-Barr virus, and hepatitis C virus
Analyte
Reporter molecule
Radioimmunoassay
Competitive and noncompetitive assays
Heterogeneous and homogeneous assays
Sandwich enzyme-multiplied immunoassays
Fluorescent immunoassays
Direct fluorescent immunoassay (DFA)
Indirect immunofluorescent
Chemiluminescent immunoassays

Immunoassay Techniques and Molecular Detection

This content covers various immunoassay methods including ELISA, radioimmunoassay, and immunofluorescence, alongside molecular detection tools like nucleic acid probes and Western Blotting.

Antigen-antibody interactions
Radioimmunoassay
Indirect ELISA
Enzyme-Multiplied Immunoassay Technique
Direct Immunofluorescence
Indirect Immunofluorescence
Western Blot
Antinuclear Antibody (ANA) screening
Reporter molecule
Nucleic acid probe
Paraprotein

Nucleic Acid Probes and PCR

This unit covers the principles, components, and procedures of nucleic acid probes and polymerase chain reaction (PCR) for DNA amplification and identification.

DNA and RNA characteristics
Nucleotide pairs
Hybridization
Nucleic acid probes
Polymerase chain reaction (PCR)
Taq polymerase
Primers
Denaturation
Extension reaction
Thermal cycle
Real-time PCR
RT-PCR

Methods of Precipitation in Immunology

Methods of precipitation include rocket immunoelectrophoresis, immunofixation electrophoresis, and Western Blot used to detect antibody or antigen complexes.

Rocket immunoelectrophoresis
Immunofixation electrophoresis
Western Blot
Antigen-antibody complexes
Gel electrophoresis
Multiple myeloma diagnosis
HIV detection

Immunoproliferative Disorders and Antigen Analysis

Electrophorese patient serum or urine to separate ABY in fluids.

Electrophoresis
Serum
IgA monoclonal ABY
Lambda chains

Mechanisms and Diagnosis of Autoimmune Diseases

Introduction to Autoimmune Diseases

Autoimmune disease is a condition in which damage to body organs results from the presence of autoantibodies and autoreactive cells.

Autoantibodies
Autoreactive T cells
Clonal deletion
T regulatory cells
Genetic factors
HLA associations
Molecular mimicry
Rheumatoid arthritis
Systemic Lupus Erythematosus
Graves disease
Laboratory diagnosis
Anti-cyclic citrullinated peptides
Erythrocyte sedimentation rate
C-reactive protein

Mechanisms and Manifestations of Autoimmune Diseases

Loss of tolerance leads to polyclonal B cell hyperactivity, autoantibodies, and immune complexes that cause tissue injury and various clinical manifestations.

Loss of tolerance
Polyclonal B cell hyperactivity
Autoantibodies
Immune complexes
Tissue injury
Complement levels
Lupus erythematosus cell
Hargraves cells
Systemic Lupus erythematosus
Erythematous rash
Butterfly rash
Renal disease
Exocrine glands
Salivary glands
Lacrimal glands

Progressive Systemic Sclerosis and Autoimmune Diseases

Progressive systemic sclerosis involves excessive collagen deposition in skin and internal organs alongside humoral and cellular immune system abnormalities.

Progressive Systemic Sclerosis
Excessive collagen deposition
Humoral and cellular immune system abnormalities
CREST variant
Calcinosis
Esophageal dysmotility
Sclerodactyly
Telangiectasia
Polymyositis
Dermatomyositis
Mixed Connective Tissue Disease

Autoimmune Thyroid and Pancreatic Diseases

Hashimoto’s thyroiditis
Graves’ disease
Hypothyroidism
Anti-thyroid peroxidase (TPO) antibodies
Anti-thyroglobulin
Hyperthyroidism
Thyroid stimulating hormone (TSH) receptor
Insufficient insulin production
Autoantibodies to islet beta cells

Characteristics of Various Autoimmune Diseases

Acetylcholine receptor autoantibody
Glomerular basement membrane antibodies
Celiac disease
Antitransglutaminase antibodies
Pernicious anemia
Intrinsic factor deficiency
Immune hemolytic anemia
Autoimmune thrombocytopenic purpura

ANA Procedures and Autoimmune Disease Diagnosis

Discuss Anti-Nuclear Antibody (ANA) or HEP-IFA screening tests, patterns of identity, and confirmatory testing for autoimmune diseases.

Anti-Nuclear Antibody (ANA)
Indirect Immunofluorescence (IFA)
HEp-2 cell line
Homogeneous pattern
Rim/Peripheral pattern
Speckled pattern
Nucleolar pattern
Centromere pattern
Anti-double stranded DNA
Extractable Nuclear Antigens
Anti-Smith antibody
Anti-SSA/Ro and anti-SSB/La
Anti-RNP
Anti-histone antibody
Crithidia test
Systemic Lupus Erythematosus (SLE)
Progressive systemic sclerosis
Mixed Connective Tissue Disease (MCTD)
Rheumatoid Arthritis (RA)

Autoimmune Diseases and Laboratory Diagnosis

Overview of systemic and organ specific autoimmune diseases, their immunopathogenic mechanisms, and laboratory methods for detecting autoantibodies and antinuclear antibodies.

Autoimmune disease mechanisms
Systemic lupus erythematosus pathogenesis
Rheumatoid arthritis immunologic findings
Connective tissue diseases
Organ specific autoimmune diseases
Antinuclear antibodies (ANA) patterns
Extractable nuclear antigens
Crithidia test
Specific autoantibodies
Laboratory diagnosis methods

Principles and Methods of Agglutination and Precipitation

Introduction to Immunodiagnostics and Agglutination

This lecture covers antigen-antibody concepts including specificity, cross-reactivity, affinity, and avidity, alongside the two-step agglutination process and the law of mass action.

Specificity
Cross-reactivity
Affinity
Avidity
Noncovalent bonds
Law of mass action
Sensitization
Lattice formation
Prozone
Zone of equivalence
Postzone
Zeta potential
Hemagglutination
Direct agglutination

Introduction to Agglutination and AGN-ABY Interactions

Agglutination occurs when ABYs and particulate AGNs cross-link to form large, visible lattices through primary, secondary, and tertiary interactions.

AGN-ABY Interactions
Primary Interaction
Secondary Interaction
Tertiary Interaction
Agglutination
Lattice formation
Sensitization
Affinity
Avidity
Zone of equivalence
Prozone
Postzone
Immunoglobulin class

Factors Affecting Lattice Formation

Factors affecting lattice formation include relative concentrations of AGN and ABY, temperature, pH, and zeta potential.

Prozone
Postzone
Equivalence zone
Relative concentrations of AGN & ABY
Temperature
IgG
IgM
pH
Lattice formation
Zeta Potential
Electrical charges on particles
Ionic strength
Centrifugation
Low Ionic strength saline (LISS)
Colloids
Enzyme treatment

Introduction to Direct Agglutination

Direct agglutination is used to identify antigens or antibodies through qualitative and semi-quantitative results.

Direct Agglutination
Hemagglutination
Bacterial identification
Antibody identification
2-Fold Dilutions
Agglutination Titers
Acute and convalescent sera
ABO typing

Immunodiagnostics: Agglutination and Precipitation

This unit covers antigen-antibody binding, the principles of agglutination and precipitation, and various laboratory methods including immunodiffusion and electrophoresis.

Antigen-antibody binding
Affinity
Avidity
Specificity
Cross-reactivity
Law of mass action
Agglutination
Precipitation
Lattice formation
Prozone
Postzone
Zone of equivalence
Direct agglutination
Passive agglutination
Reverse passive agglutination
Coagglutination
Agglutination inhibition
Turbidimetry
Nephelometry
Ouchterlony double diffusion

Medical Laboratory Science Immunology Review

A review of antibody-antigen interactions, agglutination methods, and serologic testing techniques.

Specificity
Cross-reactivity
Affinity
Avidity
Law of Mass Action
Agglutination
Prozone
Postzone
Equivalence zone
Turbidimetry
Nephelometry
Ouchterlony double diffusion
Immunofixation electrophoresis
Western Blot
Radioimmunoassays
Enzyme immunoassays
Sandwich Capture assay
Fluorescent immunoassays
Chemiluminescent immunoassays
Serum protein electrophoresis

Agglutination and Precipitation Methods

Lecture covering methods of Agglutination such as passive agglutination test, reverse passive agglutination test, coagglutination test, and agglutination inhibition test, alongside methods of Precipitation including Turbidometry/Nephelometry, Passive Immunodiffusion Techniques, and Ouchterlony double diffusion.

Passive agglutination test
Reverse passive agglutination test
Coagglutination test
Agglutination inhibition test
Turbidometry
Nephelometry
Passive Immunodiffusion Techniques
Ouchterlony double diffusion
Passive Agglutination
Carrier particles

Agglutination and Precipitation Techniques

This material covers various methods of agglutination including passive, reverse passive, coagglutination, and agglutination inhibition for detecting antigens and antibodies.

Passive Latex Agglutination
Rheumatoid Factor Test
Passive Hemagglutination
Reverse Passive Agglutination
Reverse Passive Hemagglutination
Coagglutination
Agglutination Inhibition
Hemagglutination Inhibition
False Positive and False Negative Causes
Prozone Phenomenon
Cross-reactivity

Turbidimetry and Nephelometry Measurement Techniques

Precipitation involves soluble AGN and soluble ABY producing insoluble complexes, while agglutination occurs when particulate AGNs combine with specific ABYs to form aggregates.

Precipitation
Agglutination
Turbidimetry
Nephelometry
Light Scattering
Turbidity
Insoluble complexes
Particulate AGNs
Immunoglobulins quantitation

Passive Immunodiffusion and Precipitation Techniques

Passive immunodiffusion techniques include radial immunodiffusion and Ouchterlony double diffusion to detect antibodies or antigens.

Passive Immunodiffusion
Precipitation reactions
Radial Immunodiffusion
Mancini endpoint method
Ouchterlony Double Diffusion
Identity patterns
Nonidentity patterns
Partial identity
Spur formation
Clinical laboratory use

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