2. The concentration C (in mg/dl) of a certain antibiotic in a patients bloodstream is given...
2. The concentration C (in mg/dl) of a certain antibiotic in a
patients bloodstream is given by
C= 50t /t^2+ 25
where t is the time (in hours) after taking the antibiotic.
a. What is the concentration 4 hours after taking the
antibiotic?
b. In order for the antibiotic to be effective, 4 or more mg/dl
must be present in the bloodstream. When do you have to take the
antibiotic again?
Homework Answers
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2. The concentration C (in mg/dl) of a certain antibiotic in a
patients bloodstream is given...
4) Blood calcium levels are measured in mg/dL. In patients over 30, 4 - 9.67 mg/dL,...
4) Blood calcium levels are measured in mg/dL. In patients over 30, 4 - 9.67 mg/dL, and o = 2.37 mg/dL. a) Give the blood calcium values for the middle 33% of patients. b) Give the blood calcium values for the middle 66% of patients. c) Give the 83 percentile. 5) In the U.S., about 85% of people are Rh positive for blood type. You take a sample of size 5. calculate the following probabilities: a) Pr{Y=2} b) Pr{Y-4) c)...
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estigating Patterns in Data 2 Some oral medications help us get better by entering our bloodstream. After we take the amount of the medicine that is in our bloodstream will decrease over time We can model this decrease by an exponential curve. The following table shows the amount of is a common brand name) in a person's bloodstream t hours after a person takes the table and graph below to answer the following questions acetaminophen (Tylenol he medicine. Use Amount...
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The integrated rate law allows chemists to predict the reactant concentration after a certain amount of...
The integrated rate law allows
chemists to predict the reactant concentration after a certain
amount of time, or the time it would take for a certain
concentration to be reached. The integrated rate law for a
first-order reaction is: [A]=[A]0e−kt Now say we are particularly
interested in the time it would take for the concentration to
become one-half of its initial value. Then we could substitute
[A]02 for [A] and rearrange the equation to: t1/2=0.693k This
equation calculates the time...
The mean serum-creatinine level measured in 12 patients 24 hours after they received a newly proposed...
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Quiz Emergency Procedures 1. Ameila's blood glucose is 215 mg/dL you would/would not (circle one) allow her to exercise today? (1 point) 2. Arthur has a blood glucose level of 300 mg/dL and a ketone level of.4mmol/L. You would/would not (circle one) allow him to exercise today. (1 point) 3. Mary has been exercising in the Exercise Clinic for 3 months. She is taking Simvastatin, Effexor, and Vitamin D She tells you that she didn't take her medications this morning...
The concentration of a drug x hours after its administration is approximated by 240x C(x) =...
The concentration of a drug x hours after its administration is approximated by 240x C(x) = 2 -, where C is in milligrams per cubic centimeter and 0 sxs 24. Find the absolu of C(x). 2 + 4 The absolute maximum concentration is (mg/cm® which occurs (Round to the nearest tenth as needed.) hours after adminis. mg/cm which occurs hours after administ The absolute minimum concentration is an integer or a simplified fraction.)
4) Blood calcium levels are measured in mg/dL. In patients over 30, 4 - 9.67 mg/dL, and o = 2.37 mg/dL. a) Give the blood calcium values for the middle 33% of patients. b) Give the blood calcium values for the middle 66% of patients. c) Give the 83 percentile. 5) In the U.S., about 85% of people are Rh positive for blood type. You take a sample of size 5. calculate the following probabilities: a) Pr{Y=2} b) Pr{Y-4) c)...
estigating Patterns in Data 2 Some oral medications help us get better by entering our bloodstream. After we take the amount of the medicine that is in our bloodstream will decrease over time We can model this decrease by an exponential curve. The following table shows the amount of is a common brand name) in a person's bloodstream t hours after a person takes the table and graph below to answer the following questions acetaminophen (Tylenol he medicine. Use Amount...
time does not 1. When you take a dose of medicine, the amount that remains in your bloodstream over remain constant. One popular allergy medication requires a daily dose of 10 mg. amount of the medication in the bloodstream at various times after taking the medication. The table shows the Time since taking Amount remaining 10 0 3.30 1.09 0.36 0.12 12 16 a. What type of function might be an appropriate model for these data and why? b. Use...
The concentration of a chemical in the bloodstream t hours after injection into muscle tissues is given by the following. C(t) 120 (a) Complete the table and use it to approximate the time when the concentration is greatest. (Round your answers to three decimal places.) + 0 0.5 1 1.5 2.5 C() 0.092 0.179 0 .247 0.286 293 0.278 t2.5 hr (b) Use a graphing utility to graph the concentration function and use the graph to approximate the time when...
The integrated rate law allows
chemists to predict the reactant concentration after a certain
amount of time, or the time it would take for a certain
concentration to be reached. The integrated rate law for a
first-order reaction is: [A]=[A]0e−kt Now say we are particularly
interested in the time it would take for the concentration to
become one-half of its initial value. Then we could substitute
[A]02 for [A] and rearrange the equation to: t1/2=0.693k This
equation calculates the time...
The mean serum-creatinine level measured in 12 patients 24 hours after they received a newly proposed antibiotic was 1.2 mg/dL. 1. If the mean and standard deviation of serum creatinine in the general population are 1.0 and 0.4 mg/dL, respectively, then, using a significance level of 0.05, test whether the mean serum-cre level in this group is different from that of the general population. 2. What is the p-value for the test? 3. Suppose t1.52 and a on one-sample t...
Quiz Emergency Procedures 1. Ameila's blood glucose is 215 mg/dL you would/would not (circle one) allow her to exercise today? (1 point) 2. Arthur has a blood glucose level of 300 mg/dL and a ketone level of.4mmol/L. You would/would not (circle one) allow him to exercise today. (1 point) 3. Mary has been exercising in the Exercise Clinic for 3 months. She is taking Simvastatin, Effexor, and Vitamin D She tells you that she didn't take her medications this morning...
The concentration of a drug x hours after its administration is approximated by 240x C(x) = 2 -, where C is in milligrams per cubic centimeter and 0 sxs 24. Find the absolu of C(x). 2 + 4 The absolute maximum concentration is (mg/cm® which occurs (Round to the nearest tenth as needed.) hours after adminis. mg/cm which occurs hours after administ The absolute minimum concentration is an integer or a simplified fraction.)
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