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After a urine culture, 95 colonies are counted on a plate inoculated with 1 uL of urine samplpe. What is the CFU/mL of urine?
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- How would you prepare a 1:500 dilution? You cannot use more than 10mL per tube.calculate the CFU/ml of a urine sample if 84 E. coli colonies were counted on NA when 50 microliters were plated on the NA plate from a 10-6 dilution tubeYou are given a buffer that is labeled 10x and your instructor asks you to dilute it to 1x in the final tube. If you have a final volume of 100uL in your tube how much of the 10x buffer will you need to add to bring it to 1x? Do you need to add anything else to the tube before using the new solution?
- In tabular form, provide the principle behind the reaction provided by each pad on a 10-parameter urine reagent test strip. (dipstick)Calculate the CFU/ml of a urine sample if 49 coli colonies were counted on NA when 50 microliters were plated on the NA plate from a 10-6 dilution tube.If a patient collects a 24 hour urine specimen with a volume of 1500 mL, and the patient's serum Creatinine is 5 mg/dl, and the urine creatinine is 100 mg/dl, then what is the creatinine clearance in ml/min?
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- What is the principle of pettenkofer's test in detetecting the presence of bile salt in the urine sample? And how it gives red color as a positive result?How would you perform a 100-fold dilution, if you want the final volume to be 15mL? What volume of sample and volume of dilute would be used?What volume of the saline solution must be administered to the patient in order to deliver 7.7 g of NaCl
