Helicobacter pylori in tissue samples can be readily identified by the presence

Question

Helicobacter pylori in tissue samples can be readily identified by the presence of urease cell wall endospore carbon dioxide. True or false (true = A; false = B) Most Salmonella are sensitive to acid, so millions of cells must be generally be ingested for enough to survive passage through the stomach to colonize the intestines. The diarrheal disease that occurs in cholera is caused by destruction of the intestinal epithelium by the bacteria. the action of the bacterial endotoxin on the intestinal epithelial cells. the action of an enterotoxin on intestinal epithelial cells. an allergic reaction to the bacteria adhering to the intestinal epithelium. True or False (true=A; false=B). Campylobacter jejuni gastroenteritis is typically self-limiting and leaves the patient immune to further infection Botulism is unlike other bacterial food poisonings in that the toxin exerts harmful effects on the intestinal tract. the immune system. the nervous system. the circulatory system. True or false (true = A; false = B). Brucellosis is usually acquired (via mucus membranes and minor skin injuries) from cattle or other domestic animals. Poliomyelitis is transmitted by the fecal-oral route. sexual contact. inhalation of airborne droplets. contact with an open cut. Which of the following types of hepatitis virus is transmitted by the alimentary route? hepatitis A virus hepatitis B virus hepatitis C virus none of the above The parasite responsible for primary amebic meningoencephalitis is Entamoeba histolytica. Naegleria. Cyclospora Giardia lamblia. True or false (true = A; false = B). Pseudomonas aeruginosa an opportunistic pathogen, is a major cause of healthcare associated infections. Which of the following statements regarding tapeworms is false? they absorb nutrients from the host through their body wall they complete their life cycles in a single host they can form cysts in the tissue of their host they cannot be transmitted from human to human Treponema pallidum is stained with for examination in darkfield microscope the Gram stain. the acid fast stain. silver nitrate. osmium tetroxide. Infants of infected mothers may contract gonococcal infections during development in the uterus. by transplacental transmission of the bacteria. by contamination from the mothers hands shortly after birth.

Explanation / Answer

Q77) Helicobacter pyroli in tissue samples can be readily identified by various blood tests, for detecting active H. pylori infections breath and stool tests are considered better.

In a breath test: the patient is made to swallow a pill, liquid or pudding containing tagged carbon molecules. In case of H. pylori infection, carbon is released as the solution is broken down in stomach. The body absorbs this carbon and expels it in exhale. The patient is made to exhale into a bag, and the doctor uses a special device to detect the carbon molecules (Mayoclinic). Based on this information the option D: Carbon dioxide is correct

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