Micro 1.2

1.

1 point

You obtain a bacteria that has a inconsistent gram stain, is very small, and has a positive cold hemagglutin test. What is it?

Mycobacterium tuberculosis

Haemophilus influenzae

Chlamydia pneumoniae

Mycoplasma pneumoniae

2.

1 point

Which of the following is the most common new occurrences of leprosy in the US from?

snakes

armadillos

fleas

raccoons

immigrants

3.

1 point

Chlamydia psittaci is most likely transmitted to humans by which of the following?

humidifiers

armadillos

birds

soil

other humans

4.

1 point

Which of the following host cells is mostly unique to Mycobacterium leprae?

macrophage

type II alveolar cells

Schwann cells

meninges

5.

1 point

Which of the following bacteria resemble a pair of kidney beans under the microscope?

Haemophilus influenzae

Streptococcus pyogenes

Neisseria meningitidis

Mycobacterium kansasii

Staphylococcus aureus

6.

1 point

Mycobacterium tuberculosis grows in which of the following cells?

pseudostratified ciliated columnar epithelium of the respiratory tract

red blood cells

alveolar macrophages

type II alveolar cells

7.

1 point

If you were to gram stain mycoplasma, what would you see?

gram-

unknown due to lack of cell wall

gram +

unknown due to lack of lipopolysaccharide

8.

1 point

Which of the following mycobacterium would most likely be the cause of cervical lymphadenitis in children?

M. leprae

M. kansasii

M. scrofulaceum

M. marinum

M. tuberculosis

9.

1 point

You obtain a bacteria that is a photochromogen and grows very fast. What is it?

Mycobacterium kansasii

Mycobacterium scrofulaceum

Mycobacterium marinum

Mycobacterium avium complex

10.

1 point

Mycobacterium tuberculosis is never fully dormant.

True

False

11.

1 point

Chlamydia pneumoniae elementary bodies can spread infection.

True

False

12.

1 point

Which two of the following drugs are the first to be given to a patient with TB?

Augmentin

Vancomycin

Isoniazid

Rifampin

Penicillin

13.

1 point

Which type of stain would you use if you suspected a patient to have tuberculosis?

Dieterle Silve stain

mycobacterium stain

gram stain

acid fast stain

14.

1 point

Which of the following could cause "persistence" in a Chlamydia pneumoniae infection?

nutrient deprivation

increased availability of glucose

beta lactams

high concentration of IFN-gamma

15.

1 point

Which of the following pathogens are NOT catalase +?

Staphylococcus aureus

Legionella pneumophila

Haemophilus influenzae

Bordetella pertussis

16.

1 point

Which of the following toxins produced by Mycoplasma pneumoniae causes death of ciliated epithelial cells in the respiratory tract?

A/B protoxin

hemolysin

CARDS toxin

DNases

17.

1 point

Seeing which of the following on the skin indicates a Neisseria meningitidis infection?

impetigo

petechial rash

cellulitis

abscess

18.

1 point

A patient presents with headache, fever, and a nonproductive cough for 3 days. They deny any nausea or vomiting. A sputum sample is inconclusive. Which of the following is the next diagnostic test you should run?

acid fast stain

gram stain

culture on blood agar

cold agglutination test

19.

1 point

You obtain a sample from an abscess. The bacteria is gram +, catalase +, and coagulase +. Which of the following bacteria is it most likely?

Staph aureues

Staph epidermidis

Strep pyogenes

Strep pneumoniae

Corynebacterium diptheriae

20.

1 point

Which of the following antibiotics would most likely be used to treat an infection of mycoplasma?

ampicillin

macrolide

penicillin

tetracycline

21.

1 point

Tuberculoid leprosy comes from a cell mediated immune response.

True

False

22.

1 point

Which of the following is NOT a type of Streptococcus viridans?

S. mutans

S. pneumoniae

S. gallolyticus

S. agalactiae

23.

1 point

You obtain a sputum sample with bacteria that is gram -, pleomorphic rods, and catalase +. What is it?

Haemophilus influenzae

Bordetella pertussis

Corynebacterium diptheriae

Legionella pneumophila

24.

1 point

Mycobacterium tuberculosis is transferred by which of the following?

prairie dogs

other humans

armadillos

fleas

humidifiers

25.

1 point

Which of the following substances can Neisseria meningitidis use to grow?

lactose

maltose

sucrose

glucose

26.

1 point

Haemophilus influenzae is most likely to cause which of the following infections?

glomerularnephritis

cellulitis

meningitis

endocarditis

pneumonia

27.

1 point

Difference of metabolism of what substance would distinguish Mycoplasma hominis from other mycoplasma species?

glucose

arginine

urea

oxygen

28.

1 point

Which of the following does NOT cause atypical pneumonia?

Mycoplasma pneumoniae

Legionella pneumophila

Chlamydia pneumoniae

Haemophilus influenzae

29.

1 point

Miliary TB affects which of the following?

lungs

lymph nodes

brain

kidneys

all of the above

30.

1 point

Someone who has had a splenectomy would be most susceptible to which of the following pathogens?

Haemophilus influenzae

Neisseria meningitidis

Staphylococcus aureus

Corynebacterium diptheriae