ROSH REVIEW -INFECTIOUS DISEASE UPDATED ACTUAL Questions and
CORRECT Answers
1. B. Pseudomonas aeruginosa Which of the following bacterial pathogens is
associated with hot tub folliculitis.
A. E. coli
B. P. aeruginosa
C. S. aureus
D. Streptococcus pyogenes
2. Gram negative rod What is the gram stain, shape of P. aeruginosa?
3. C. Neisseria gonorrhoeae An 18-year-old man presents to the oflce for
complaints of purulent discharge from his pe-
nis and painful urination for about one week.
Today, he started complaining of joint pain
and fever. On physical exam, his right knee is
swollen and warm to the touch with loss of
range of motion. He had unprotected inter-
course with several men in the past few weeks
and has a history of prior sexually transmitted
infections. A specimen is obtained, and a cul-
ture is ordered. Which of the following organ-
isms is most likely to be identified on a culture?
A. Chlamydia trochomatis
B. Haemophilus ducreyi
C. Neisseria gonorrhoeae
D. Treponema pallidum
4. Gram negative Gram stain and shape of Neisseria gonor-
Diplococci rhoeae?
5. Neisseria gonorrhoeae Pelvic inflammatory disorder, septic joint,
pharyngitis think?
,6. Chlamydia trachomatis What bacteria is also found along with patients
who have gonococcal disease?
7. Fever, rash, septic arthritis What is disseminated infection of gonococcal
Polyarthralgias infections characterized by?
8. C. Gram negative diplococcus A 25-year-old man presents to the clinic with
dysuria and urethral discharge. He is diag-
nosed with urethritis due to a sexually trans-
mitted disease. He is correctly treated with 500
milligrams of ceftriaxone. Which of the follow-
ing describes the causative organism?
A. Diflcult to Gram stain
B. Gram positive
C. Gram-negative diplococcus
D. protozoan parasite
9. A. Chancroid A 30-year-old man presents to the clinic with
fluctuant inguinal lymphadenopathy. The pa-
tient states that the symptoms were preceded
by a solitary painful ulcer on the glans of his
penis. Which of the following is the most likely
diagnosis?
A. Chancroid
B. Granuloma inguinale
C. Herpes simplex virus
D. Syphilis
10. B. Botulism A 21-year-old man is brought in to the emer-
gency room with a one-day history of nausea
and vomiting, diflculty swallowing, and double
, vision. Upon physical exam, he has evidence of
extraocular muscle weakness. He has not had
any episodes like this before. He explains that
he recently started a fruit canning business.
Which of the following is the most likely diag-
nosis?
A. Anthrax
B. Botulism
C. Guillain-Barre syndrome
D. Myasthenia gravis
11. Club shaped gram positive rod C. botulinum, gram stain? shape? aerobic or
Anaerobic, spore forming anaerobic?
12. Clostridium botulinum Most potent biologic toxin in the world?
13. Clostridium botulinum Which bacteria can cause "floppy baby syn-
drome" in infants?
14. Guillain-Barre syndrome is characterized by ascending
Descending paralysis whereas, clostridium botulinum is
characterized by paralysis.
15. Clostridium botulinum History of eating canned food, symmetric de-
Antitoxin scending paralysis, think what organism? What
treatment?
16. D. Shigella gastroenteritis A 33-year-old man presents to the clinic with
fever, crampy abdominal pain, small and fre-
quent bloody stools, and tenesmus. He is non-
tender to palpation during exam, and he re-
ports no vomiting. He also has not had any re-
CORRECT Answers
1. B. Pseudomonas aeruginosa Which of the following bacterial pathogens is
associated with hot tub folliculitis.
A. E. coli
B. P. aeruginosa
C. S. aureus
D. Streptococcus pyogenes
2. Gram negative rod What is the gram stain, shape of P. aeruginosa?
3. C. Neisseria gonorrhoeae An 18-year-old man presents to the oflce for
complaints of purulent discharge from his pe-
nis and painful urination for about one week.
Today, he started complaining of joint pain
and fever. On physical exam, his right knee is
swollen and warm to the touch with loss of
range of motion. He had unprotected inter-
course with several men in the past few weeks
and has a history of prior sexually transmitted
infections. A specimen is obtained, and a cul-
ture is ordered. Which of the following organ-
isms is most likely to be identified on a culture?
A. Chlamydia trochomatis
B. Haemophilus ducreyi
C. Neisseria gonorrhoeae
D. Treponema pallidum
4. Gram negative Gram stain and shape of Neisseria gonor-
Diplococci rhoeae?
5. Neisseria gonorrhoeae Pelvic inflammatory disorder, septic joint,
pharyngitis think?
,6. Chlamydia trachomatis What bacteria is also found along with patients
who have gonococcal disease?
7. Fever, rash, septic arthritis What is disseminated infection of gonococcal
Polyarthralgias infections characterized by?
8. C. Gram negative diplococcus A 25-year-old man presents to the clinic with
dysuria and urethral discharge. He is diag-
nosed with urethritis due to a sexually trans-
mitted disease. He is correctly treated with 500
milligrams of ceftriaxone. Which of the follow-
ing describes the causative organism?
A. Diflcult to Gram stain
B. Gram positive
C. Gram-negative diplococcus
D. protozoan parasite
9. A. Chancroid A 30-year-old man presents to the clinic with
fluctuant inguinal lymphadenopathy. The pa-
tient states that the symptoms were preceded
by a solitary painful ulcer on the glans of his
penis. Which of the following is the most likely
diagnosis?
A. Chancroid
B. Granuloma inguinale
C. Herpes simplex virus
D. Syphilis
10. B. Botulism A 21-year-old man is brought in to the emer-
gency room with a one-day history of nausea
and vomiting, diflculty swallowing, and double
, vision. Upon physical exam, he has evidence of
extraocular muscle weakness. He has not had
any episodes like this before. He explains that
he recently started a fruit canning business.
Which of the following is the most likely diag-
nosis?
A. Anthrax
B. Botulism
C. Guillain-Barre syndrome
D. Myasthenia gravis
11. Club shaped gram positive rod C. botulinum, gram stain? shape? aerobic or
Anaerobic, spore forming anaerobic?
12. Clostridium botulinum Most potent biologic toxin in the world?
13. Clostridium botulinum Which bacteria can cause "floppy baby syn-
drome" in infants?
14. Guillain-Barre syndrome is characterized by ascending
Descending paralysis whereas, clostridium botulinum is
characterized by paralysis.
15. Clostridium botulinum History of eating canned food, symmetric de-
Antitoxin scending paralysis, think what organism? What
treatment?
16. D. Shigella gastroenteritis A 33-year-old man presents to the clinic with
fever, crampy abdominal pain, small and fre-
quent bloody stools, and tenesmus. He is non-
tender to palpation during exam, and he re-
ports no vomiting. He also has not had any re-
