Febrile Agglutinins

Question 1

These are antibodies demonstrated in microbial diseases that are manifested by a high fever?

Answer 1

Febrile Agglutinins

Question 2

These are the types of febrile agglutinins?

Answer 2

Typhoid, Typhus, Brucellosis, and Tularemia

Question 3

What are the main tests used to detect febrile agglutinins?

Answer 3

Widal, Tyhpidot, and Weil-Felix Test

Question 4

This is used for the diagnosis of tyhpoid fever?

Answer 4

Widal’s Test

Question 5

What is being looked for in a patient blood sample in Widal’s test?

Answer 5

O and H Antibodies

Question 6

Specimen used on the 1st and 2nd week of diagnosing typhoid fever?

Answer 6

Blood 1st Week
Urine and Stool 2nd Week

Question 7

Why is urine and stool requested in the second week of a patient suffering from typhoid fever?

Answer 7

Dehydration and bacterial excretion

Question 8

Causative agent of typhoid fever?

Answer 8

Salmonella typhi

Question 9

This is a screening test for typhoid fever performed using a serum sample?

Answer 9

Typhidot

Question 10

What is the other term used for typhoid fever?

Answer 10

Enteric Fever

Question 11

What is being detected in typhidot?

Answer 11

IgM and IgG to Salmonella typhi

Question 12

What antibody is involved in the “anamnestic response”?

Answer 12

IgG

Question 13

This is a non-specific test for detecting antiboies against ricketssial diseases?

Answer 13

Weil-Felix Test

Question 14

This is the bacterial species that is derived from the OX-19 and OX-2 antigens used to react with ricketsial species.

Answer 14

Proteus vulgaris (OX-19,2)
Proteus mirabilis (OX-K)

Question 15

What rickettsial disease is positive for the OX-19 and OX-2

Answer 15

Rocky Mountain Spotted Fever (Rickettsia rickettsii)

Question 16

What is the rickettsial disease positive to OX-K?

Answer 16

Scrub Typhus (Orientia tsutsugamushi)

Question 17

This disease uses agglutination test and cross reacts with Francisella tularensis?

Answer 17

Brucellosis

Question 18

What is the skin rash associated with Lyme’s disease?

Answer 18

Erythema Chronicum Migrans

Question 19

Causative agent for Lyme’s disease?

Answer 19

Borrelia burgdorferi

Question 20

What are the laboratory tests used for Lyme’s disease?

Answer 20

IFA, EIA, Western Blot

Question 21

Causative agent for primary atypical pneumonia?

Answer 21

Mycoplasma pneumoniae

Question 22

These are antibodies that react best with RBC at temperatures below 37 degrees?

Answer 22

Cold Agglutinins (IgM)

Question 23

This is the laboratory test for cold agglutinins and its principle?

Answer 23

Rapid Screening Test for Cold Agglutinins
Principle: Hemagglutination

Question 24

This is the antigen and antibody used in rapid screening test for cold agglutinins?

Answer 24

Antigen: Fresh Human Group O
Antibody: Cold Agglutinin in Px Serum

Question 25

These are common reagents used in Widal and Weil-Felix tests?

Answer 25

Brucella, Salmonella Somatic Group, Paratyphoid, Typhoid, and Proteus

Question 26

This is the principle if the Widal and Weil-Felix Tests?

Answer 26

(Direct) Agglutination

Question 27

What is the corresponding interpretation for the results 4, 3, 2, 1, Trace, and 0 in Widal/Weil-Felix tests?

Answer 27

100%, 75%, 50%, 25%, <25%, and 0 Huge, Moderate, Clump, Small, Very Little, None

Question 28

This infection has no known reservoirs and are spread via contaminated food, water, or direct contact with fecal matter?

Answer 28

Typhoid Fever

Question 29

This is the term that describes people with typhoid fever that shed infectious bacteria in their stool up to 3 months?

Answer 29

Chronic Carriers

Question 30

Anticoagulants used when collecting plasma sample for rapid IgM and IgG test for Salmonella typhi?

Answer 30

Heparin, EDTA, and Sodium Citrate

Question 31

What is the interpretation of rapid test for typhoid fever when there is a line on C?

Answer 31

Negative

Question 32

What is the interpretation of rapid test for typhoid fever when there is a line on C and G?

Answer 32

IgG positive, previous infection or re-infection

Question 33

What is the interpretation of rapid test for typhoid fever when there is a line on M and C?

Answer 33

IgM positive, acute typhoid

Question 34

What is the interpretation of rapid test for typhoid fever when there is a line on G, M, and C?

Answer 34

IgM and IgG positive, acute middle stage infection

Question 35

What is the interpretation of rapid test for typhoid fever when there no line at C?

Answer 35

Invalid