Spirochetes I and II

Question 1

What is the severe form of leptospirosis caused by Leptospira interrogans?

A. Weil syndrome
B. Brown-Séquard syndrome
C. Adams-Stokes syndrome
D. Crigler-Najjar syndrome
E. DiGeorge syndrome

Answer 1

A. Weil syndrome

Question 2

Dysfunction of which organs can be seen in Weil syndrome?

A. Lungs and heart
B. Liver and kidneys
C. Liver and heart
D. Heart and kidneys
E. Lungs and kidneys

Answer 2

B. Liver and kidneys

Question 3

Diagnosis of Leptospira interrogans infection can be made by examining which fluid of the body?

A. Saliva
B. Blood
C. Semen
D. Urine
E. Gastric juice

Answer 3

D. Urine

Question 4

Which disease is caused by Borrelia burgdorferi?

A. Addison disease
B. Graves disease
C. Sickle cell disease
D. Celiac disease
E. Lyme disease

Answer 4

E. Lyme disease

Question 5

What is a common reservoir for Borrelia burgdorferi?

A. White-footed mouse
B. Mosquito
C. Goat
D. Cow
E. Sheep

Answer 5

A. White-footed mouse

Question 6

The life cycle of Borrelia burgdorferi takes how long to complete?

A. 3 years
B. 3 weeks
C. 6 weeks
D. 3 months
E. 6 months

Answer 6

A. 3 years

Question 7

Ticks in which two stages can transmit Borrelia burgdorferi to humans?

A. Larval and egg stages
B. Nymph and egg stages
C. Nymph and larval stages
D. Nymph and adult stages
E. Adult and larval stages

Answer 7

D. Nymph and adult stages

Question 8

Which sexually transmitted disease is caused by Treponema pallidum?

A. Gonorrhea
B. Herpes
C. Chlamydia
D. Genital warts
E. Syphilis

Answer 8

E. Syphilis

Question 9

Treponemal tests are based on which type of immunoglobulin?

A. IgD
B. IgE
C. IgG
D. IgA
E. IgM

Answer 9

C. IgG

Question 10

Which is the most common screening test used for syphilis?

A. Stool antigen test
B. FTA-ABS test
C. MHA-TP test
D. RPR test
E. VDRL test

Answer 10

D. RPR test

Question 11

In addition to treponemal infections, treponemal and nontreponemal test results can be positive for which of the following conditions?

A. Crohn's disease
B. Ulcerative colitis
C. Gastrinoma
D. Pregnancy
E. Cirrhosis

Answer 11

D. Pregnancy

Question 12

The Jarisch-Herxheimer reaction is caused by injecting high doses of which antibiotic in the patients with syphilis?

A. Ceftriaxone
B. Azithromycin
C. Penicillin
D. Gentamicin
E. Ciprofloxacin

Answer 12

C. Penicillin

Question 13

Which of the following describes chancres formed as a result of primary syphilis?

A. Painful, raised skin lesion
B. Painful, ulcerated skin lesion
C. Painless, ulcerated skin lesion
D. Painless, nodular skin lesion
E. Painless, raised skin lesion

Answer 13

C. Painless, ulcerated skin lesion

Question 14

When do buboes appear in patients with primary syphilis?

A. 1–2 weeks before chancres
B. 1–2 hours after chancres
C. 1–2 days before chancres
D. 1–2 days after chancres
E. 1–2 weeks after chancres

Answer 14

E. 1–2 weeks after chancres

Question 15

For patients with primary syphilis, diagnosis can be made by observing treponemes under which microscope?

A. Light microscope
B. Dark-field microscope
C. Stereo microscope
D. Immunofluorescence microscope
E. Electron microscope

Answer 15

B. Dark-field microscope

Question 16

Which type of skin lesions develop in yaws caused by Treponema pallidum?

A. Elevated, nodular skin lesions
B. Depressed, papilloma-like skin lesions
C. Depressed, ulcerated skin lesions
D. Elevated, ulcerated skin lesions
E. Elevated, papilloma-like skin lesions

Answer 16

E. Elevated, papilloma-like skin lesions

Question 17

Which type of lesions initially develop in pinta caused by Treponema pallidum?

A. Large pruritic papules
B. Small pruritic vesicles
C. Small pruritic papules
D. Small pruritic macules
E. Large pruritic macules

Answer 17

C. Small pruritic papules