22) A patient\'s many cerebrospinal fluid sample is found to have 45,000,000 bac
ID: 188173 • Letter: 2
Question
22) A patient's many cerebrospinal fluid sample is found to have 45,000,000 bacterial cellis per ml. How notation. (2 air ells per L are present in the patient's cas? Give your answer in scientific bac Followng antibiotic treatment, the patient's (see above) bacterial load dropped to 1400 your answer in scientific notation. (2 points) cells per L. How many bacterial cells remain in each mL of this patient's CBS? Give mL 4OD CA, average healthy person has a blood cholesterol level of less than 225 mg per dL, how ma ny g of cholesterol per L would s/he have? Give your answer in scientific notation. (2 points) 25) The average healthy person has 0.5-6.0 units per mL of thyroid stimulating hormone (TSH). How much TSH would s/he have per dL? Give your answer in scientific notation. (2 points) 26) Normal blood glucose levels are considered to be 70-150 mg/dl. How many ng of glucose would be in each mL of this patient's blood? Give your answer in scientific notation. (2 points) 27) Following an overnight fast (going without food, overnight), the patient's glucose level dropped to 60 mg/dL. How many ug of glucose are in each cL of this patient's blood? Give your answer in scientific notation. (2 points)Explanation / Answer
22. Number of bacterial cells per mL = 4.5 x 107
Number of bacterial cells per uL = (4.5 x 107)/103 = 4.5 x 104 bacterial cells per uL (the value was divided by a thousand because a uL is a thousandth of an mL)
23. Number of bacterial cells per uL = 1400
Number of bacterial cells per mL = 1400 x 103 = 1.4 x 106 bacterial cells per mL
24. Amount of cholestrol per dL = 225 mg
Amount of cholestrol per L = 25 mg x 10 = 2250 mg = 2.25 x 103 mg = 2.25 g
The average healthy person will have 2.25 grams of cholestrol per liter of blood
(1 L = 0.1 dL)
25. Amount of TSH per mL = 0.5-0.6 units
Amount of TSH per dL = 50-60 units
(1 dL = 100 mL)
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