Immunology Solo 3 Kahoot Review

If Babesia cannot be observed by microscopic examination of peripheral blood smear from a patient who is ill but has no travel history to a malaria endemic area, an acute infection with Babesia can be diagnosed by:

Test an acute and convalescent sera for a rise in IgG titer

Molecular technique to detect the organism

In suspected human monocytic ehrlichiosis (HME), if a patient has a supporting history and clinical symptoms, the diagnosis can be confirmed by a serological titer greater than

1:128

In cases of toxoplasmosis, diagnosis can be established by

PCR
IFA
Isolation of the organism

In cases of current toxoplasmosis infection the earliest that Toxoplasma abs can be detected is ____ after infection

Within the first 2 weeks

Heterophile antibodies can be characterized as

Reacts with horse and sheep RBCs

Absorbed by beef RBCs

Not absorbed by guinea pig kidney cells

The antigen expressed by Epstein-Barr (EBV) infected lymphocytes encoded by the virus include

Early antigen (EA)

Viral Capsid Antigen (VCA)

Epstein-Barr Nuclear Antigen (EBNA)

Common vectors of Lyme disease include all the following except

Dermacentor variabilis

Erythema chronicum migrans (ECM)

Harbors Borrelia burgdorferi in the advancing edge

Lyme disease is a _____ type of infection

Bacterial

Lyme disease is caused by a

Spirochete

Babesia is characterized by

Fever

Fatigue

Hemolytic anemia

In the eastern US, babesiosis is caused by

Babesia microti

Zika is transmitted primarily by

Mosquitos

West Nile Virus causes

Enchepahlitis

One of the most physical findings in adults with ehrlichiosis is

Fever

Toxoplasmosis is a _______ infection

Parasitic

The definitive host of Toxoplasma gondii is

Domestic cat

Toxoplasmosis is a serious health threat to

Patients with AIDs

Congenital toxoplasmosis can cause

Central nervous systems malformation

The method of choice for detecting IgM antibodies to toxoplasmosis is

Enzyme-linked immunosorbent assay (ELISA)

All of the following describe CMV except

Epidemic worldwide

(Describing it: Herpes family virus, DNA virus, Cell associated virus)

Transfusion acquired CMV infection can cause

Mononucleosis-like syndrome

Hepatitis

Rejection of transplanted organisms

EBV cause all of the following except

Neoplasm of the bone marrow

Can cause: Infectious mononucleosis, Burkitt lymphoma, Nasopharyngeal carcinoma

Anti-EBNA IgG does not appear until the patient has entered the

Convalescent period

What percentage of the worlds population is exposed to EBV?

95%

The use of horse erythrocytes in rapid slide tests for infectious mononucleosis increases their

Both sensitivity and specificity

EBV-Infected B lymphocytes express all of the following new antigens except

Cytoplasmic antigen

Does express: Viral Capsid Antigen (VCA), Early Antigen (EA), Nuclear antigen (EBNA)

With Rubella infection the appearance of ____ antibodies is associated with the clinical signs and symptoms, when present

Both IgG and IgM

The greatest risk of manifestation of anomalies in maternal rubella is _______ of gestation

First trimester

Acute Rubella infection lasts from ______ days

3 to 5

Rubella IgM antibodies reach peak levels at _____ days

7 to 10

Which of the following is a symptom of Streptococcus pyogenes infection?

Erythema Chronicum Migrants (ECM)

The classic tests to demonstrate the presence of streptococcus infections are

ASO and anti-DNase

Virulent serotypes of S. pyogenes produce proteolytic enzymes that cause _______ in a wound or lesion on extremity

Necrotizing fasciitis

Substances produced by S. pyogenes include all the following except

Interferon

Serological testing for S. pyogenes should compare acute and convalescent specimens collected _____ apart

Two weeks

Erythrogenic toxin produced by group A Streptococcus

Responsible for characteristic scarlet fever

Which is true regarding Streptolysin O found in Streptococcus species infections

Binds to sterols in the RBC membrane causing rearrangement of fatty acids

An elevated anti-streptolysin O (ASO) titer indicates

Recent streptococcal infection

FTA-ABS is a treponemal method

True

Rapid reagin plasma is a non-treponemal method

True

Direct examination of Treponema spirochete is most often performed by

Darkfield microscopy

The first diagnostic blood test for Syphilis is

RPR

Which of the following is a term for non-treponemal antibodies produced by an infected patient against components of their own or other mammalian cells?

Reagin antibodies

A false positive RPR can be caused by

Rheumatoid arthritis

Before clinical or serological manifestations, the incubation period for syphilis usually lasts

About 3 weeks

Tertiary syphilis is best evaulated by using

CSF

The presence of gummas, or localized lesions affecting the skeletal system, is found is which stage of syphilis

Tertiary (late) syphilis