![]() ![]() Non-coliforms are generally non-lactose fermenting or slow lactose-fermenting bacteria that are either normal microbiota or regular pathogens. The Coliforms are gram-negative normal enteric microbiota that ferment lactose rapidly (within 48 hours). T or F FACT] The Family Enterobacteriaceae is traditionally divided into two subcategories. The adverse factor in gram-negative sepsis is the presence of an endotoxin called lipopolysaccharide (LPS) in the outer membrane of the gram-negative cell wall. Nationwide, over 10 million patients a year die from a condition called septic shock. though the endotoxins of all gram-negative bacteria can cause shock, the most common clinical cases are due to gram-negative rods. Damage to the organs can elicit respiratory failure, coma, heart failure, and death in a few hours. Its major symptoms and signs are nausea, tachycardia, cold, clammy skin, and weak pulse. Septic shock is a pathologic state of low blood pressure accompanied by a reduced amount of blood circulating to vital organs, particularly the brain, heart, lungs, and kidneys. T or F Blood infection is one of the most serious consequences with gram-negative bacteria, even if the species involved is not a virulent pathogen. The most common nosocomal Pseudomonas infections occur in compromised hosts with severe burns, neoplastic disease, and premature birth. Pseudomonas aeruginosa is a typical opportunist. ![]() Regarding Pseudomonas aeruginosa which is incorrect? a) is resistant to soaps, dyes, certain disinfectants, drugs, and drying b) is a frequent contaminant of ventilators, intravenous solutions, and anesthesia equipmen c) contaminates disinfected instruments, utensils, bathroom fixtures, and mops d) is incriminated in hospital outbreaks c) all of the above are correct 87. Pseudomonas: The Pseudomonads a) Many species produce pigments that diffuse into the medium and change its color b) They can adapt to a wide range of habitats and extract ATP from t c) They degrade extracellular materials with protease, amylase, pectinase, and numer d) They are important decomposers and bioremediators e) All of the above are correct tiny amounts of nutrients. coli 0157:H7 is an enteropathogenic strain, and a) the reservoir is the intestines of cattle-contaminates beef some cases develop into hemolytic uremic syndrome all of the above are correct b) d) none of the above are correct 85. Of 9 83, W hich is not a characteristic of the coliform group? a) non-glucose fermenting b) lactose fermenting ) oxidase negative d) gram negative rods 84. ![]()
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