Search results
Results from the WOW.Com Content Network
Proteus mirabilis appears as Gram-negative rods after Gram staining under bright-field microscopy with 1000 times magnification. Proteus mirabilis is a Gram-negative, facultatively anaerobic, rod-shaped bacterium. It shows swarming motility and urease activity. P. mirabilis causes 90% of all Proteus infections in humans.
Purple urine bag syndrome can be diagnosed by medical professionals based on a patient's medical history, symptoms, and the results of their laboratory tests. This is a relatively rare diagnosis that is usually sparked by patients and healthcare providers noticing that a patient's urine collection bag from a catheter has become discolored and ...
P. mirabilis uses biofilm formation and swarming motility to colonize indwelling urinary catheters, and then migrates through the urethra and into the bladder. The high level of urea (~0.4 M) in urine saturates the urease enzyme within colonizing bacteria and thus the enzymes work at V max.
P. mirabilis, once attached to the urinary tract, infects the kidney more commonly than E. coli. P. mirabilis is often found as a free-living organism in soil and water. About 10–15% of kidney stones are struvite stones , caused by alkalinization of the urine by the action of the urease enzyme (which splits urea into ammonia and carbon ...
Normal urine pH is slightly acidic, with usual values of 6.0 to 7.5, but the normal range is 4.5 to 8.0. A urine pH of 8.5 or 9.0 is indicative of a urea-splitting organism, such as Proteus, Klebsiella, or Ureaplasma urealyticum; therefore, an asymptomatic patient with a high pH means UTI regardless of the other urine test results.
Among these are Pseudomonas aeruginosa, which has a grape-like scent; Staphylococcus aureus, which is said to smell like old socks; and Proteus mirabilis, whose scent is alternately described as putrid [1]: 168 or like chocolate cake. [7]: 124 Other distinctive features of colonial morphology include motility and the production of pigments.
Three Proteus species P. vulgaris, P. mirabilis, and P. penneri are opportunistic human pathogens, most commonly resulting in urinary tract infections. [2] Proteus vulgaris is commonly found in the intestine in various animals, and is shed into manure and soil.
Urinalysis, a portmanteau of the words urine and analysis, [1] is a panel of medical tests that includes physical (macroscopic) examination of the urine, chemical evaluation using urine test strips, and microscopic examination.