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12 Cards in this Set

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  • Back
The cases of mumps has been reduced to app 300 cases in the U.S. due to immunization. TRUE/FALSE
Because parotitis is not always present and the incubation period can range from 7-23 days, what are other practical diagnostic alternatives?
Direct fluorescent test and Elisa.
What is the preventitive and treatment protocol for the mumps?
Treatment is symptomatic for fever and dehydration.
A live attenuated mumps vaccine given routinely as part of the MMR vaccine at 12-15 months of age. a single vaccine is given to unprotected adults.
Helicobacter pylori is often found in the stomachs of patients with gastric ulcers. TRUE/FALSE
Terms of duodenal and peptic ulcers are often used interchangably. TRUE/FALSE
What is the most common cause of gastric ulcers?
H. pylori is a curved Gram - rod closely resembling Campylobacter.
What is the pathogenesis of H. pylori?
Once the bacterium passes into the GI tract, it bores through the outermost mucus layer that lines the stomach epithelial tissue. it attaches to specific binding sites on the cells and entrenches itself.
What is the relationship between H. pylori and the O blood type?
One receptor specific for this microbe is the same molecule on human cells that confers the O blood type. This accounts for the higher rates of ulcers in people with this blood type.
How else might H. pylori protect itself?
It can form urease, an enzyme that converts urea into ammonium and bicarbonate, both alkaline compounds that can neutralize stomach acid.
How is H. pylori transmitted?
It occurs in the stomachs of 25% of healthy middle aged adults and in more than 60% of adults over age 60. It is likely transmitted from person to person by the oral oral or fecal oral route.
Some believe that it might also represent an animal zoonosis.
App. 2/3 of the worlds population is affected by it.
How is H. pylori diagnosed?
Typically done with endoscopy. There is as well the urea breath test.
Patients ingest urea that has a radioactive tag on its carbon molecule. If helicobacter is present in the stomach, the bacteriums urease breaks down the urea and the patient exhales radioactively labeled CO2.
A blood test is available as well that uses Elisa technology to find antibodies to H. pylori.
In the US up to a third of all acute diarrhea is transmitted by contaminated food. TRUE/FALSE
TRUE. Though many forms are self limiting, E. coli, 0157:H7 can have devastating effects.