SYPHILIS AND RICKETSSIA

Question 1

: anti-phagocytic, mimic proteins on the heart valve

Answer 1

M Proteins

Question 2

– to remove cross-reactivity

Answer 2

(Reiter strain)

Question 3

ТРНА:

Answer 3

Turkey erythrocytes

Question 4

Lyme disease Vector:

Answer 4

Ixodes scapularis tick

Question 5

ANTISTREPTOLYSIN O TEST (ASTO/ASO)

If a patient’s serum containing [?] Ab is added to the streptolysin Rgt, an Ag-Ab reaction occurs causing the neutralization of the toxin

Answer 5

antistreptolysin O

Question 6

Prepare

Answer 6

14 tubes

Question 7

is the RBC control (no hemolysis) = (+) control

Answer 7

Tube 13

Question 8

is the SLO control (hemolysis) = (-) control

Answer 8

Tube 14

Question 9

Normal: Titer of

Answer 9

166 Todd units or below (0-166)

Question 10

ANTI-DNASE B TESTING

Positive result: green complex (Intact DNAmethyl green conjugate because [?])

Answer 10

no hydrolysis

Question 11

Murine typhus

Answer 11

R. typhi

Question 12

Trench fever

Answer 12

Rartonella (Rochalimaea) quintana

Question 13

Does not react with Weil Felix

Answer 13

Trench fever

Q fever

Question 14

: OX-19 and OX-2

Answer 14

Proteus vulgaris

Question 15

Capsular Antigen
Associated with virulent strains
Indicated carrier state

Answer 15

Vi Antigen

Question 16

TYPHIDOT Aka

Answer 16

Dot Enzyme Immunoassay

Question 17

• Most reliable indicator

Answer 17

Agglutination method

Question 18

MYCOPLASMA PNEUMONIAE

Causes [?]/walking pneumonia

Answer 18

PAP (Primary atypical pneumonia)

Question 19

not a serologic test but microbiolog ic assay

Answer 19

Culture

Question 20

Look for growth on specialized agars

Answer 20

Culture

Question 21

Difficult to grow and takes several weeks

Answer 21

Culture

Question 22

Antibodies crossreact with I antigen on group O red cells; look for agglutination

Answer 22

Cold agglutinin testing

Question 23

Easy to do but not specific for mycoplasma

Answer 23

Cold agglutinin testing

Question 24

Patient ingests radioactive urea; bicarbonate produced, which is breathed out as CO2

Answer 24

Urea breath test

Question 25

Rapid and sensitive but involves radioactivity

Answer 25

Urea breath test

Question 26

o Indicates current or past infection and in most cases immunity

Answer 26

IgG antibodies to the virus

Question 27

Acute Rheumatic fever Virulent factor:

Answer 27

M protein

Question 28

WEIL-FELIX TEST Principle:

Answer 28

Direct Agglutination

Question 29

SEROLOGICAL TESTS FOR SALMONELLA
Gold Standard:

Answer 29

Bacterial culture

Question 30

MYCOPLASMA PNEUMONIAE Immunologic feature:

Answer 30

Cold agglutinins

Question 31

BRUCELLA

: pink

Answer 31

Gram (-) bacteria

Question 32

Line in IgG:

Answer 32

previously successfully treated

Question 33

R. akari

Answer 33

Rickettsial pox