MAJOR EXAM 1 Flashcards

1
Q

The heterophile antibody test is reported as_

a. Lowest dilution that shows hemolysis
b. Lowest dilution that shows agglutination
c. Highest dilution that shows hemolysis
d. Highest dilution that shows agglutination

A

Highest dilution that shows agglutination

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2
Q

The forsman heterophile antibody found in normal serum is adsorbed by —

a. Beef red cell
b. Guinea pig kidney antigen
c. Monkey kidney cell
d. Sheep red bloor cell

A

Guinea pig kidney antigen

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3
Q

High affinity of anti-DNA antibodies are most frequently found assoclated with

a IM
b. Scleroderma
c. Sjogren’s syndrome
d. SLE

A

SLE

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4
Q

Stain is concentrated on the edge of the nucleus is a

a. Diffuse
b. Rim
c. Speckled
d. Nucleolar

A

Rim

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5
Q

What type of antibody is represented by the homogenous pattern In FANA?

a. Anti-ds DNA
b. Anticentromere
c. Anti-ENA antibody
d. Anti-RNA antibody

A

Anti-ds DNA

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6
Q

What antibodies are represented by the nucleolar pattern in the immunofluorescence test for antinuclear antibodies?

a. Anti-histone antibodies
b. Anti-dsDNA antibodles
c. Anti-RNA antibody
d. Anticentromere

A

Anti-RNA antibody

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7
Q

Which disease is likely to show a rim pattern in Immunofluorescence microscopy test for ANA (FANA)?

a. Mixed connective tissue disease (MCTD)
b. Rheumatoid arthritis (RA)
c. Systemic lupus erythematosus (SLE)
d. Scleroderma

A

Systemic lupus erythematosus (SLE)

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8
Q

What disease is associated by a high titer of anti-Sm antibody?
a. MCTD
b. RA
c. SLE
d. Scleroderma

A

SLE

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9
Q

Rheumatoid factor is not found in

a. Osteoarthritis
b. Gout
c. Infectious joint disease
d. Infectious mononucleosis

A

Infectious mononucleosis

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10
Q

What is the primary class of Immunoglobulin is the serologically detectable antibody produced in rheumatoid arthritis?

a. IgA
b. IgE
C. IgG
d. IgM

A

IgM

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11
Q

Hashimoto disease is an autoimmune disease primarily involving the _

a. Kidneys
b. Liver
c. Lungs
d. Thyroid gland

A

Thyroid gland

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12
Q

An elderly woman presents with chronic fatigue, difficulty sleeping, a rapid heartbeat, and bulging eyes. Lab tests
revealed autdantibodies to thyroid-stimulating hormone. The most likely diagnosis is _

a. Hashimoto’s disease
b. Cancer of the thyrold
c. Grave’s disease
d. Pernicious anemia

A

Grave’s disease

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13
Q

An autoimmune disease causing destruction of pancreatic cells can result in_

a. Hashimoto disease
b. Multiple sclerosis
c. Myasthenia gravis
d. Type 1 Diabetes

A

Type 1 Diabetes

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14
Q

Demyelinating lesions, Increased IgG in spinal fluid and chronic relapsing occurences are characteristic of which
autoimmune disease?

a. Grave’s disease
b. Multiple sclerosis
c. Myasthenia gravis
d. Systemic lupus erythematosus

A

Multiple sclerosis

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15
Q

Goodpasture’s syndrome is characterized by glomerulonephritis in genetically susceptible Individuals. The responsible antigen is_

a. A glycoprotein dispersed uniformly on the glomerular basement mernbrane
b. A circulating antigen-antibody complex
c. Rheumatoid factor
d. A complement factor influx of neutrophils

A

A circulating antigen-antibody complex

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16
Q

What streptococcal extracellular product can dissolve fibrin clots?

a. enterotoxin
b. hyaluronidase
c. streptodornase
d. streptokinase

A

streptokinase

17
Q

What is the endpoint for the antistreptolysin O (ASO) latex agglutination test?

a. Highest serum dilution that shows agglutination
c. Lowest serum dilution that shows agglutination
b. Highest serum dilution that shows no agglutination
d. Lowest serum dilution that shows no agglutination

A

Highest serum dilution that shows agglutination

18
Q

False ASO results may be caused by all the following, EXCEPT:
a. Oxidation of ASO reagent
b. Room temperature reagents and specimens at the time of testing
c. Presence of beta-lipoprotein
d. Bacterial contamination

A

Room temperature reagents and specimens at the time of testing

19
Q

Long-term complications of S. pyogenes infection include/s
a. Acute rheumatic fever
b. AGN
c. Scarlet fever
d. Both A & B only

A

Both A & B only

20
Q

What is the positive reaction in antistreptolysin O test?

A. Agglutination
b. flocculation
c. hemolysis
d. none of the above

A

Agglutination

21
Q

What is the serologic test of choice for diagnosing acute rheumatic fever and AGN due to S. pyogenes?

a. ASO titer
b. Anti-NADase
c. Anti-DNAse B
d. Throat culture

A

Anti-DNAse B

22
Q

Both bacterial endocarditis and glomerlonephritis are associated with the formation of_

a. Complement system
b. Radioactive particles In blood
c. Immune complexes
d. ELISA reaction

A

Immune complexes

23
Q

What allowed H. pylori to survive the transit through the gastric lumen to start an infection?

a. The use of antacids by a patient
b. Buffering capacity generated by the Cag A protein of the organism
c. Production of an urease enzyme
d. Presence of the polysaccharide capsule that protects the cells

A

Production of an urease enzyme

24
Q

Most serological test for H. pylori Infection detects what antibody?

a. IgA
b. IgE
c. IgM
d. IgG

25
What is the virulence factor of H. pylori? a. Hyaluronidase b. CagA and VacA c. Poly-D glutaryl d. M protein
CagA and VacA
26
The cold agglutination test is commonly employed to assist in the diagnosis of_ a. Haemophilus influenzae b. Klebsiella pneumoniae c. Mycoplasma pneumoniae d. Streptococcus pneumoniae
Mycoplasma pneumoniae
27
Cold agglutinins are autoantibodles that react with — on blood cells. a. Duffy antigens b. Ii antigen c. Kell antigens d. Kidd antigen
Ii antigen
28
The Widal test detects Infection caused by what microbial organism? a. Mycobacterlum tuberculosis b. Rickettsia species c. Salmonella d. Streptococcus
Salmonella
29
Which of the following antibodies reacts with antibodies from individuals with scrub typhus? a. Proteus OX-2 b. Proteus OX - 19 c. Proteus OX - K d. Proteis OX-X
Proteus OX - K
30
Which of the following disease may give a false positive result if the patient has a Lyme's disease? a. AIDS b. Cold agglutinins c. Hepatitis d. Syphilis
Syphilis
31
What is the causative agent of scrub typhus simllar to spotted fever? a. O. tsutsugamushi b. R. akari c. R. rickettsia d. R. typhi
O. tsutsugamushi
32
Which of the following is not a part of the Spotted Fever Group? a. R. typhi b. R. rickettsia c. R. akari d. None of the above
R. typhi
33
Which of the following is associated with the rubella virus? a. It is a DNA virus b. It is transmitted by an arthropod vector c. It is a member of the same taxinomic family as measles virus d. It is known to produce defects in fetuses during the early stages of pregnancy
It is known to produce defects in fetuses during the early stages of pregnancy
34
The appearance of Koplik spots in the oral mucosa of patients is characteristic of infection with what viral agent? a. Hepatitis b. Measles c. Rabies d. Smallpox
Measles
35
Which of the ff. is the confirmatory method of choice for detecting antibodies to HTLV? a. ELISA b. Latex agglutination test c. PCR d. Westernblot test
Westernblot tesr