question
We discussed a novel therapy for C. Diff. How does it work?
answer
Replaces normal flora bacteria in the intestine to compete with the pathogen
question
UV light destroys bacteria by
answer
Damaging DNA
question
A substance that has been pasteurized
answer
Does not contain pathogenic bacteria
question
Differential media would be used to
answer
Cause certain bacteria to look different
question
A stool sample added to a culture medium that has been designed so that gram-positive bacterial growth is inhibited but gram negative growth is not. What type of culture medium is this?
answer
Selective medium
question
Bacteria that can grow only in the absence of oxygen are said to be
answer
Anaerobic
question
Which of the following would be the best way to check the function of an autoclave?
answer
Autoclave bacterial spores to be sure they will not grow
question
The advantage of spore formation for bacteria is
answer
Survival in harsh conditions
question
Lipopolysaccharide (LPS) is found in the
answer
Gram-negative outer membrane
question
The bacterium Staphylococcus aureous appears microscopically as
answer
A grape- like cluster of spheres
question
Whether a bacterium is gram-positive or gram-negative matters, because
answer
It is related to antibiotic sensitivity
question
Which one of the following generally represents sizes from smallest to largest
answer
Viruses to bacteria to protozoa
question
Which one of the following is not a risk factor for healthcare associated infection?
answer
Isolation
question
Which cellular organelle may have originally been a free-living separate organism which was engulfed by a primitive eukaryotic cell?
answer
Mitochondria
question
Which of the following would be the best treatment for shingles?
answer
Acyclovir
question
Biofilms can make treatment more difficult because
answer
Bacteria in biofilms may develop increased antibiotic resistance
question
_____ is a anaerobic spore former associated with gas gangrene.
answer
Clostridium perfringens
question
Which one of the following is not caused by a member of the herpesvirus family
answer
Rubella
question
The cutaneous form of anthrax spreads from infected animal carcasses through
answer
Spores
question
Which of these is most likely to be used as a topical antibiotic?
answer
Bacitracin
question
Which of the following is/are associated with measles?
answer
A, B, C - subcacute sclerosing panencephalitis, red skin rash, koplik spots
question
The most common cause of pharyngitis is
answer
Virus infection
question
Pneumonia caused by which organism is associated with "currant jelly" sputum?
answer
Klebsiella pneumonia
question
Conjunctivitis can be caused by
answer
All of the above - adenovirus, hemophilus influenze, streptococcus
question
Which of the following infections may spread to the bloodstream and become systemic?
answer
Salmonella typhi
question
Possible complications of strep throat include
answer
All of the above - acute glomerulonephritis, rheumatic heart disease, scarlet fever
question
Which section of the gastrointestinal tract has the smallest number of normal flora organisms?
answer
Stomach
question
Diagnosis of hepatitis infection requires
answer
Test for antibodies to the virus
question
Which of following organisms is associated with epiglottitis?
answer
Hemophilus influenza
question
A major change in the influenza virus is called
answer
Antigenic shift
question
Which of the following is caused by helicobacter pylori?
answer
Stomach ulcers
question
Pt presents with bloody diarrhea and cramps. Which bacterium is most likely to be the cause?
answer
Campylobacter jejuni
question
Which of the following can be picked up by walking barefoot in infected soil or water in warm, wet climates?
answer
Hookworms
question
C. Diff is associated with
answer
Pseudomembranous colitis
question
Chronic otitis media may be difficult to treat due to which of the following?
answer
Biofilm formation
question
Which of the following is an intestinal parasite associated with contaminated water, causing a diarrhea which lasts for 1-2 weeks?
answer
Cryptosporidium
question
How is an infection with pinworms often diagnosed
answer
Scotch tape test
question
Infection with which of these hepatitis viruses is/are associated with chronic liver disease?
answer
Hep C
question
Which of the following is associated with hemolytic uremic syndrome (HUS)?
answer
EHEC
question
What does a positive TB test indicate?
answer
Infection with mycobacterium tuberculosis, but not necessarily active disease
question
Which of the following conditions indicates infection at the most superficial tissue level?
answer
Folliculitis
question
An infant suffering from a paroxysmal cough with a loud inspiration may have an infection with ____, this may be related to _____
answer
Bordetella pertussis, weakened immunity from family member's vaccines
question
Healthcare associated pneumonia is often associate with which organism?
answer
A and C- acinetobacter and pseudomonas
question
Travelers to the desert southwest may be at risk for what fungal infection?
answer
Coccidioidomycosis
question
This parasite is the most commonly-reported intestinal protozoan and is associated with some forms of traveler's diarrhea. (the trophozite form resembles a face)
answer
Giardia
question
The deadliest types of healthcare associated infections are
answer
Bloodstream infections and pneumonia
question
Which of the following is/are true regarding collection of a sputum specimen?
answer
A and C- a nebulizer may be used to induce deep cough and the specimen should be thick and mucoid
question
Treatment for methicillin-resistant Staph infections may include
answer
Vanomycin
question
A previously healthy young adult is diagnosed with atypical pneumonia. Which of the following organisms is most likely to be the cause?
answer
Mycoplasma pneumonia
question
A young child has been diagnosed with gastroenteritis as a result of consuming raw milk. Which of the following is not likely to be the organism involved?
answer
Bacillus anthracis
question
BONUS: A college student comes to the school nurse complaining of nausea, diarrhea and abdominal cramps. List three organisms that could be causing the problem- one bacterium, one virus, and one parasite.
answer
1.Bacterium - E.Coli
2.Virus- nerovirus
3.Parasite- hookworms
2.Virus- nerovirus
3.Parasite- hookworms
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