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As a laboratory assistant you were asked to estimate the total number of bacteria in the urine of a person with a urinary tract disorder. After other laboratory tests, you were left with less than 0.1 ml of urine to work with. A standardized inoculating loop (0.01 ml) was available, so you transferred a loopful of the sample to 9.99 ml of a sterile saline solution. You then transferred 5 ml of this dilution into 20 ml of a new sterile saline solution. Finally, you took some of the last diluted urine solution and plated 0.01 ml and 0.1 ml (each in duplicate). 37 and 33 colonies were counted for the 0.01 ml plating and 309 and 341 for the 0.1 ml plating. How many bacteria were present in 1 ml of urine?
Mrs. Smith, 57, is complaining of chest pain for the last couple of months. Prior to the current pain she used to complain of tightness in her chest. She smokes twenty cigarettes a day.
Evaluate the degree and quality of care that physicians, nurses, and medical technologists provide in their primary roles, including, but not limited to, patient safety and satisfaction as required in 21st Century U.S. hospitals
One animal always has extra toes on one of its four feet, but which foot has the extra toes is random. What proportion of males in a population will have extra toes on the right side of its body? (back and front foot of right side)
Fluid accumulates in bellies of children with kwashiorkor. Describe how protein helps regulate fluid balance to explain why this occurs?
If urine is normally sterile within the urinary bladder, explain two ways in which urine may become contaminated when obtaining a urine culture.
What is the significance of the discount rate, present worth, net present value, and indirect costs to a company considering P2 options? Minimum 200 words
Which of the following is not an advantage of multicellularity?
What scientist discovered the number of adenine molecules in DNA was almost always equal to the number of thymine molecules in DNA?
The decomposition of dead plants and animals is necessary to maintain an equilibrium in an ecosystem. Explain this statement in terms of the carbon cycle
A case study usually pertains to information regarding an individual, his or her symptoms, medical test results, and the diagnosis. The New England Journal of Medicine has a featured case study in each issue, as do many other professional journals.
The human body produces a variety of immunoglobulins. Explain why does the body need so many different classes and subclasses of these immunoglobulins?
Assume you are performing a reverse transcription reactions for high-throughput analysis using a 96-well plate format. Each 96-well plate is eight horizontal rows of wells by 12 vertical columns of wells.
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