ALU 301 Exam Questions And Complete Solutions Graded A+
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ALU 301
ALU 301 Exam Questions And Complete Solutions Graded A+
Mediators
Immune cells release proteins that mediate inflammation and in the destruction of agents foreign to the host (interferons, interleukins, and immunoglobulins)
Two main parts of the immune system
1) Innate Immune System
2) The...
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ALU 301 Exam Questions And Complete
Solutions Graded A+
Mediators
Immune cells release proteins that mediate inflammation and in the destruction of agents foreign to
the host (interferons, interleukins, and immunoglobulins)
Two main parts of the immune system
1) Innate Immune System
2) The Adaptive Immune System
White blood cells of the innate immune system
1) Monocytes
2) Granulocytes (Neutrophils, Eosinophils, Basophils)
3) Natural Killer (NK) Cells
Two types of T-lymphocytes
1) Cytotoxic T-cells
2) Helper T-cells
What are the roles of the cytotoxic T-lymphocytes?
1) Destroy or remove the infectious microorganism
2) Recognize altered host cells that have become malignant
Polyclonal Gammopathy
A broad-based spike would be seen on serum protein electrophoresis (SPEP) testing.More than one
clone of lymphocytes has been stimulated to produce different antibodies
Monoclonal Gammopathy
SPEP results with narrow peak known as a spike. Corresponds to an elevated level of a single antibody
Agammaglobulinemia
A disorder that can result from a number of abnormal genes
Monocytes
They circulate in the blood and are one part of the WBC differential in a CBC. When the leave the
blood circulation, they migrate into tissues and mature into macrophages
Granulocytes
The most abundant WBC in the blood count differential. They circulate in the blood and concentrate
at a site of infection when signaled by macrophages
Natural Killer (NK) Cells
Can act on its own with receptors that recognize damaged cells. They are important for surveillance of
cancerous and pre-cancerous cells.
,Cells of the adaptive immune system
Lymphocytes
5 Classes of Immunoglobulins
IgG, IgA, IgM, IgE, IgD
The first antibody to be produced during an infection
IgM
Type of immune cell that differentiates in the bone marrow
B-lymphocyte
Which immune cell produces antibodies?
B-lymphocytes
Three components of the innate immunity
1) Physical Barriers
2) White Blood Cells
3) Natural Killers
The Complement System
A group of about 30 blood proteins that may amplify the inflammatory response, enhance
phagocytosis, or directly lyse extracellular pathogens.
Cytokines
Enhance activation of immune cells
Two types of Inflammatory Bowel Diseases
1) Ulcerative Colitis
2) Crohn's Disease
Three etiologies of Inflammatory Bowel Disease
1) Genetic Predisposition
2) Unidentified Environmental Factors
3) Abnormality of the mucosal immune system
Where does Ulcerative Colitis manifest?
Only in the colon and only in the mucosa (inner lining)
What is the most common presenting symptom of UC?
,Rectal bleeding in the form of bloody diarrhea
How is disease severity determined in UC?
Clinical Symptoms and Endoscopy
Where does Crohn's Disease manifest?
All parts of the GI tract can be involved, from mouth to anus
What is the most common presenting symptom of Crohn's Disease?
Abdominal Pain
Serologic markers that can help with diagnosis of IBD
Perinuclear Antineutrophil cytoplasmic antibodies (pANCA)
-or-
anti-Saccharomyees Cerevisiae Antibodies
The most common extraintestinal manifestation of IBD
Arthritis
Ocular manifestations of IBD
Anterior Uveitis
Episcleritis
Most life-threatening complication of IBD
Toxic Megacolon
The premalignant lesion in IBD
A flat dysplastic tissue that is visually normal in appearance
Cure for Ulcerative Colitis
Total Proctocolectomy
The mainstay of acute treatment for mild to moderate IBD
5-aminosalicylate-based compounds. Sulfasalazine and Mesalamine
Treatment for moderate to severe IBD when the 5-aminosalicylate-baseed compounds are
inadequate
Corticosteroids (Prednisone)
The drug prescribed to individuals who cannot taper or discontinue corticosteroids without a flare are
prescribed what?
Immunomodulating Drugs (Azathioprine, 6-Mercaptopurine, and Methotrexate)
Drug of choice for maintenance therapy in Crohn's Disease
, Immunomodulating Drugs (Azathioprine, 6-Mercaptopurine, and Methotrexate)
Symptoms of Rheumatoid Arthritis
Pain, Stiffness, and Swelling of the diarthrodial joints
Most commonly affected joints in Rheumatoid Arthritis
1) Proximal Interphalangeal (PIP) and Metacarpophalangeal (MCP) Joints of the hands
2) Metatarsophalangeal (MTP) Joints of the feet
3) Wrists and Elbows
4) Shoulders
5) Ankles and Knees
What score is needed on the ACR-EULAR 2010 criteria to diagnose RA?
>6
Palindromic Rheumatism
A pattern in which joint pain worsens for a few hours to days the rapidly remits
Morning Stiffness in RA
Not uncommon in other arthropathies, persistence for at least one hour is unusual, except in RA
Initial Assessment of RA shoud include:
Complete Examination, Blood Chemistries, CBC, RF, anti-CCP, ANA, CRP, ESR, UA, XRays, baseline CXR,
and Hepatitis Serologies
Measures to quantify and serially measure disease activity and response to therapy (Rheumatoid
Arthritis)
Disease Activity Score (DAS) and Clinical Disease Activity index (CDAI)
Laboratory Testing in RA
RF and anti-CCP (ACPA) for diagnosis and CRP for monitoring
Acute Phase Reactants (APR)
C-Reactive Protein and Erythrocyte Sedimentation Rate (ESR)
The leading cause of death in RA
Coronary Artery Disease
Felty's Syndrome
A triad of seropositive rheumatoid arthritis, splenomegaly, neutropenia
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