Micro Pop questions final

Which of these is required for proper specimen collection when trying to diagnose an infection?
a. Use of sterile containers and tools.
b. Specimen should be stored in non-nutritive maintenance mediac.
c. Specimen should be refrigeratedd
d. all of the above

An acid-fast stain can be used to diagnose an infection by which pathogen?
a. Staphylococcus aureus, because this microbe has mycolic acid in its cell wallb.
b. Staphylococcus aureus, because this microbe has peptidoglycan in its cell wall
c. Mycobacterium tuberculosis, because this microbe has mycolic acid in its cell wall
d. Mycobacterium tuberculosis, because this microbe has peptidoglycan in its cell wall

A patient goes to the doctor with a skin infection, and the physician takes a specimen from the infection site. A Gram stain of the specimen reveals dark purple cells. Is this pathogen likely to be Streptococcus pyogenes or Staphylococcus aureus

Choose the true statement regarding the direct antigen test.
a. It is easy and quick, and can be performed at the doctor's office
b. The test requires the microbe to be grown in culture first
c. The test is often used to diagnose cases of Strep throat.
d. A and C

True or False - In the indirect ELISA test, the secondary antibody binds to the patient's antibodies

During impetigo, ____________________ uses its M-protein to degrade epithelial connections in the host skin.
a. Streptococcus pyogenes
b. Staphylococcus aureus
c. Mycobacterium tuberculosis
d. HIV

During impetigo, _____________________ uses exfoliative toxins to degrade epithelial connections in the host skin.
a. Streptococcus pyogenes
b. Staphylococcus aureus
c. Mycobacterium tuberculosis
d. HIV

True or False - Staphylococcal Scalded Skin Syndrome (SSSS) is most common in babies

What is the causative agent of chickenpox?
a. Human herpes virus 3
b. Neisseria meningitidis
c. Staphylococcus aureus
d. Streptococcus pyogenes

Which of the following statements about shingles is INCORRECT?
a. It is caused by human herpes virus 3
b. There is a vaccine for shingles
c. It can be treated with antibiotics
d. Symptoms include nerve pain

Which microbe causes the most serious form of meningitis and preferentially infects college-aged individuals?
a. Streptococcus pneumoniae
b. Neisseria meningitidis
c. Enteroviruses
d. Streptococcus pyogene

A patient goes to the hospital with symptoms of meningitis. A spinal tap is performed and a Gram stain of the CSF reveals Gram-positive cocci. What is the likely cause of the infection?
a. Streptococcus pneumoniae
b. Neisseria meningitidis
c. Enteroviruses
d. Streptococcus pyogenes

True or False: There is a vaccine to prevent pneumococcal meningitis

True or False: Rhinitis is caused by a single respiratory virus

Which of the following statements about rhinitis is INCORRECT?
a. Rhinitis is an infection of the upper respiratory tract
b. Symptoms include runny nose, sneezing, scratchy throat and production of clear mucus
c. Rhinitis increases an individual's susceptibility to bacterial sinusitis (sinus infection)
d. There is a vaccine to prevent rhinitis

True or False: Influenza can infect the lungs and upper respiratory tract.

Which statement about antigenic drift is CORRECT?
a. It occurs in influenza viruses
b. It is when a virus mutates its surface antigens so that host antibodies no longer recognize them
c. It is the reason that you need to get a new flu vaccine each year
d. All of the above are correct

Which microbe causes pneumococcal pneumonia?
a. Streptococcus pneumoniae
b. Mycoplasma pneumoniae
c. Enteroviruses
d. Streptococcus pyogenes