(a) If a patient takes a 100 mg dose of a drug A (with half-life of...
(a) If a patient takes a 100 mg dose of a drug A (with half-life of 4 hr) every 4-hr, how much drug would be remain in the body at 24-hr (6 half-lives later)? Show work
| time | 0 | 4 | 8 | 12 | 16 | 20 | 24 |
| dose administered | 100 mg | 100 mg | 100 mg | 100 mg | 100 mg | 100 mg | 100 mg |
| total drug remaining in body | 100 mg |
Homework Answers
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(a) If a patient takes a 100 mg dose of a drug A (with half-life
of...
If this drug has a half-life of 8-hr instead of 4-hr, what is the amount of...
If this drug has a half-life of 8-hr instead of 4-hr, what is the amount of drug in the body at 24-hr and 48-hr? time 0 hr 8 hr 16 hr 24 hr 32 hr 40 hr 48 hr drug administered 100 mg 100 mg 100 mg 100 mg 100 mg 100 mg 100 mg drug remaining 100 mg ? ? ? ? ? ?
17. Life Science: drug dosage. A dose of a drug is injected into the body of...
17. Life Science: drug dosage. A dose of a drug is injected into the body of a patient. The drug amount in the body decreases at a rate of 55% per hour, that is, dA =-0.55A, dt where A is the amount in the body and r is the time, in hours. (a) A dose of 7 cubic centimeters (cc) is administered. Assuming A = 7. find the function that satisfies the equation. (b) How much of the initial dose...
The patient is taking a 2-mg dose of ropinerol XR. The drug has a half-life of...
The patient is taking a 2-mg dose of ropinerol XR. The drug has a half-life of 12 hours. How long will it be before only 0.25 mg of this drug remains in the patient's system?
nt. The drug amount in the body dose of a drug is iniected into the body...
nt. The drug amount in the body dose of a drug is iniected into the body of a patient. The drug amount in me buy decreases at the rate of 11% per hour, that is, A = -0.11A where A is the amount in the body and t is the time, in hours. a. (3 pts.) A dose of 4 cubic centimeters (ce) is administered. Assuming Ao - the function that satisfies the equation. b. (2 pts.) How much of...
When a 120 mg IV-Bolus of Drug A is administered to a patient, an AUC -60...
When a 120 mg IV-Bolus of Drug A is administered to a patient, an AUC -60 mg/L/hr is observed. Knowing that Drug A has an half-life of 12 hours, calculate the volume of distribution of Drug A in liters
Pharmacokinetics 1-An analgesic was given in a dose of 300, Vd=20L, Kel = 0.15hr-1 a- calculate...
Pharmacokinetics 1-An analgesic was given in a dose of 300, Vd=20L, Kel = 0.15hr-1 a- calculate Cp 2 Hr after injection. b-Calculate the half-life of the drug c- Calculate time for 80% to be completely eliminated d- How many half-lives will the drug take when 50 mg of it remain in the body?
A 199 lb patient is ordered to receive intermittent IV infusions of a drug. This drug...
A 199 lb patient is ordered to receive intermittent IV infusions of a drug. This drug has a population-based Vd of o. Lkg and a 6 hr elimination half-life. The ordering physician has indicated the rate of drug infusion should be 150 mg/hr for a total time of 2 hours. Assume the nurse will set the infusion pump to be 2 mL/min. You must now prepare the small volume parenteral bag containing the drug. What should be the drug concentration...
1. A new drug was given in a single intravenous dose of 200 mg to an...
1. A new drug was given in a single intravenous dose of 200 mg to an 80- kg adult male patient. The apparent VD is 0.8 L/kg, and the drug is eliminated by 1st order kinetics. Compute the initial drug plasma concentration. 2. A drug has an elimination half-life of 4 hours and follows first-order kinetics. If a single 600-mg dose is given to a patient by IV bolus, what percent of the dose is lost in 12 hours?
Ch. Ex. 63- Half-life - use value and interval to calculate mass of sample remaining 5...
Ch. Ex. 63- Half-life - use value and interval to calculate mass of sample remaining 5 attempts left C Check my work If 3.3 mg of the radioisotope iodine-131 is administered to a patient, how much will remain in the body after 27 days, assuming that no iodine has been eliminated from the body by any other process? (The half-life of iodine-131 is 8.1 days.) mg
A patient takes 150 mg of a drug at the same time every day. Just before...
A patient takes 150 mg of a drug at the same time every day. Just before each tablet is taken, 5% of the drug remains in the body. What quantity of the drug is in the body after the third tablet? After the nth tablet? What quantity of the drug remains in the body in the long run?
17. Life Science: drug dosage. A dose of a drug is injected into the body of a patient. The drug amount in the body decreases at a rate of 55% per hour, that is, dA =-0.55A, dt where A is the amount in the body and r is the time, in hours. (a) A dose of 7 cubic centimeters (cc) is administered. Assuming A = 7. find the function that satisfies the equation. (b) How much of the initial dose...
The patient is taking a 2-mg dose of ropinerol XR. The drug has a half-life of 12 hours. How long will it be before only 0.25 mg of this drug remains in the patient's system?
nt. The drug amount in the body dose of a drug is iniected into the body of a patient. The drug amount in me buy decreases at the rate of 11% per hour, that is, A = -0.11A where A is the amount in the body and t is the time, in hours. a. (3 pts.) A dose of 4 cubic centimeters (ce) is administered. Assuming Ao - the function that satisfies the equation. b. (2 pts.) How much of...
When a 120 mg IV-Bolus of Drug A is administered to a patient, an AUC -60 mg/L/hr is observed. Knowing that Drug A has an half-life of 12 hours, calculate the volume of distribution of Drug A in liters
A 199 lb patient is ordered to receive intermittent IV infusions of a drug. This drug has a population-based Vd of o. Lkg and a 6 hr elimination half-life. The ordering physician has indicated the rate of drug infusion should be 150 mg/hr for a total time of 2 hours. Assume the nurse will set the infusion pump to be 2 mL/min. You must now prepare the small volume parenteral bag containing the drug. What should be the drug concentration...
Ch. Ex. 63- Half-life - use value and interval to calculate mass of sample remaining 5 attempts left C Check my work If 3.3 mg of the radioisotope iodine-131 is administered to a patient, how much will remain in the body after 27 days, assuming that no iodine has been eliminated from the body by any other process? (The half-life of iodine-131 is 8.1 days.) mg
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