Filters
Question type

Study Flashcards

What brain defense restricts substances from entering the brain by the vascular system?


A) meninges
B) blood-brain barrier
C) macrophages
D) microglia
E) cranium

F) A) and C)
G) D) and E)

Correct Answer

verifed

verified

Which organism is a common cause of meningitis in AIDS patients and can be found in bird droppings?


A) Listeria monocytogenes
B) Haemophilus influenzae
C) Neisseria meningitidis
D) Cryptococcus neoformans
E) Streptococcus agalactiae

F) A) and B)
G) D) and E)

Correct Answer

verifed

verified

Which of the following is not a prion disease?


A) scrapie
B) Creutzfeldt-Jacob disease
C) bovine spongiform encephalopathy
D) subacute sclerosing panencephalitis

E) C) and D)
F) B) and D)

Correct Answer

verifed

verified

Pneumovax is a vaccine for prevention of disease caused by strains of Neisseria meningitidis.

A) True
B) False

Correct Answer

verifed

verified

Neonatal meningitis is most commonly transmitted by


A) breast feeding.
B) hospital personnel.
C) transplacental infection.
D) exposure in birth canal.
E) exposure from other infants.

F) A) and B)
G) A) and C)

Correct Answer

verifed

verified

Patients with Creutzfeldt-Jacob disease live _____ post diagnosis.


A) less than 1 year
B) 1 to 5 years
C) 5 to 10 years
D) 10 to 20 years
E) greater than 25 years

F) None of the above
G) B) and C)

Correct Answer

verifed

verified

The organism responsible for the majority of neonatal meningitis is


A) Streptococcus agalactiae.
B) Escherichia coli K1.
C) Listeria monocytogenes.
D) Haemophilus influenzae.
E) Neisseria meningitidis.

F) A) and E)
G) A) and D)

Correct Answer

verifed

verified

In rabies,spasms of muscles for swallowing lead to a fear of water.

A) True
B) False

Correct Answer

verifed

verified

All of the following are true for Listeria monocytogenes except


A) resistant to cold.
B) fastidious.
C) resistant to heat.
D) resistant to salt.
E) can result in septicemia.

F) B) and D)
G) A) and E)

Correct Answer

verifed

verified

Which of the following is/are a sign or symptom of meningitis?


A) headache
B) stiff neck
C) white blood cells in cerebrospinal fluid
D) fever
E) All of the choices are correct.

F) A) and B)
G) C) and D)

Correct Answer

verifed

verified

No cases of attenuated polio virus reverting to a neurovirulent strain have been documented.

A) True
B) False

Correct Answer

verifed

verified

Which of the following is not true of meningoencephalitis?


A) causative organisms are Naegleria fowleri and Acanthamoeba
B) involves infection of both the brain and meninges
C) causative organisms are viruses
D) modes of transmission are direct contact and swimming in warm,fresh water
E) treatment for primary amoebic meningoencephalitis (PAM) is mostly ineffective

F) B) and E)
G) A) and B)

Correct Answer

verifed

verified

Your friend is bitten on the leg by an aggressive dog.Since the dog ran and was not caught,and since the dog bit many other people without reason,it is suspected that it had rabies.The city health department recommends the rabies vaccination for her,even though she has already been exposed to the infectious agent.Which statement best describes why the vaccine can be given post-exposure?


A) This particular strain of the rabies virus is probably nonpathogenic,so the vaccine is given to simply boost the immune system's own protective functions.
B) Since there is really nothing else to do,they suggest the vaccine as a last possibility.
C) The virus exhibits a long incubation period,in many cases providing the vaccine adequate time to have a protective effect in the patient.
D) There were few virus particles in the bite,so her immune system has enough time to kick into high gear.

E) A) and B)
F) None of the above

Correct Answer

verifed

verified

Which of the following is not true of Streptococcus pneumoniae?


A) most frequent cause of community-acquired meningitis
B) has a polysaccharide capsule that resists phagocytosis
C) produces alpha-hemolysin and hydrogen peroxide
D) small gram-positive flattened coccus
E) responds well to penicillin

F) C) and D)
G) All of the above

Correct Answer

verifed

verified

When you were much younger you received the OPV polio vaccine and its boosters.Now you are going on a mission trip to Bangladesh and the vaccine is recommended by the Centers for Disease Control.When you go to the city health office to get the vaccine,they given you the IPV vaccine.When you ask why you are receiving the IPV rather than the OPV,the personnel there tell you:


A) the IPV is preferred by patients because it can be taken orally.
B) the IPV has fewer active viruses in it than the OPV,so they say it is safer.
C) the health facility is just out of the OPV vaccine,but if they had it that one would be the one they would prefer to use.
D) there is no possibility of actually developing polio from this vaccine.

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

Production of a neurotoxin that prevents acetylcholine release from motor neurons at neuromuscular junctions is a characteristic of


A) Clostridium botulinum.
B) Clostridium perfringens.
C) Clostridium difficile.
D) Clostridium tetani.

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

Showing 61 - 76 of 76

Related Exams

Show Answer