The plasma concentration of a drug is 50 mg/L and is decreasing in first-order fashion with a half-life of 12 hours. Approximately how may hours will it take for the blood concentration to fall to a desired range of 10-15 mg/L? (A) 12 (B) 24 (C) 36 (D) 48 (E) 50

In order to understand the alpha and beta properties (mechanism of action) of Epinephrine, you 38) must be familiar with the drug's _______. A) Pharmacotherapeutics B) Pharmacodynamics C) Bioavailability D) Pharmacokinetics

54. The volume of distribution of a drug is 350 L. Which of the following is most likely to account for this volume of distribution? OA) Extensive binding to tissue proteins B) Extensive hepatic metabolism C) Inability to cross the blood-brain barrier D) Low lipid solubility E) Rapid renal excretion

A 35 year old woman begins therapy with a drug( 50 mg twice daily) that has a volume distribution of 70L and an elimination half life of 2 days. According to first order kineticds, the average drug concentration will reach 75% of the average steady state blood concentration after how many days (A) 2 (B) 4 (C) 6 (D) 8 (E) 10

1) You have a loml vial of heparin which is labeled ee l0,50 units Im". You have with drawn 0.7ml of heparin In >> your Syringe How many units are Cont aired In this volume?

Heparin 25,000 units in 1000 mL of 0.9NS is ordered to infuse at a rate of 100 units per hour. How many mL/hr will be set on the infusion pump?

i found this past paper however i cannot find the solutions, please can you answer question 1b

For the next set of exercises, convert the given drug dilutions into milligrams per milliliter. 16. Given: Calculate: 17. Given: Calculate: 18. Given: Calculate: 19. Given: Calculate: 20. Given: Calculate: 21. Given: Calculate: 22. Given: Calculate: On hand: 1:25 dilution On hand: On hand: 1:100 dilution On hand: On hand: 1:80 dilution On hand: On hand: 1:50 dilution On hand: On hand: 1:625 dilution On hand: On hand: 1:333 dilution On hand: On hand: 1:500 dilution On hand: _mg/ml mg/ml _mg/ml _mg/ml _mg/ml _mg/ml _mg/ml

First, we will build a model for the total amount of drugs in the gut. At time \(t = 0\), \(10mg\) of the drug is present in the gut. From the gut, it passes slowly into the blood. The passage of the drug to the blood has first-order kinetics; that is, every hour \(42\%\) of the drug remaining in the gut is passed from the gut into the blood. No more pills are taken, so no extra drug is added to the gut.   Let \(a_t\) be the sequence representing the amount of Adderall XR in the patient’s gut \(t\) hours after the pill was taken. Write down a recursion relation for \(a_t\).   Find an explicit formula for \(a_t\).   Calculate the time at which the amount of drug remaining in the gut drops to \(1\%\) of its starting value; that is, find \(t\) for which \[a_t = 0.01a_0\] Find \(\lim_{t\to\infty}a_t\), what does it represent?   Now let’s build a model for the amount of drug in the patient’s blood. Define another sequence \(b_t\) that represents the amount of Adderall XR in the patient’s…

Mrs. Johnson came into your clinic complaining of fatigue, feeling cold all the time, and unexplained weight gain.  A blood test gives the following results (normal ranges given for comparison):             T3:  0.03ng/dl  (normal: 0.2-0.5 ng/dl)             T4:  1.1 ug/dl (normal: 4-7 ug/dl)             TSH: 86 mU/l (normal: 0.3-4.0 mU/l) A) Explain how you know the problem is with Mrs. Johnson’s thyroid and not her pituitary gland.   B) Is Mrs. Johnson suffering from primary or secondary hypothyroidism? Explain your answer. you must explain the distinction between primary and secondary endocrine disorders and relate to this specific scenario