Patient W.L. received a 20 mg intravenous (IV) bolus dose of…
Patient W.L. received a 20 mg intravenous (IV) bolus dose of pamidronate for the treatment of Paget’s disease of bone. Plasma samples were collected 15 minutes and 5 hours after administration. The measured plasma concentrations were: C15min = 76.6 µg/L, C5h = 68.1 µg/L. Assume that pamidronate follows a one-compartment pharmacokinetic model with first-order elimination. (17 pts. total) a. To improve therapeutic response, the physician decides to administer pamidronate by continuous IV infusion and wishes to achieve a target steady-state plasma concentration (Css) of 200 µg/L. Calculate the IV infusion rate required to achieve the desired steady-state concentration in this patient. (9 pts.) b. Calculate the plasma concentration of pamidronate 4 hours after the IV infusion is initiated. (2 pts.) c. One month later, Patient W.L. returns for a second treatment course. Due to a severe intra-abdominal infection, his renal function has declined, and his creatinine clearance (CrCL) has decreased from 110 mL/min to 65 mL/min. Assume that 46% of an IV dose of pamidronate is excreted unchanged in urine. To maintain the target Css of 200 µg/L, calculate the following: (i) IV infusion rate (4 pts.); (ii) Loading dose (2 pts.).
Read DetailsBased on what you have learned, what aspects do small busine…
Based on what you have learned, what aspects do small business owners or managers need to keep in mind? To help you answer this question, think about the parts of the Business Plan you wrote. Share examples and ideas from your work in this class. Compose your answer over a few paragraphs from the heart, but don’t worry about perfect grammar/spelling. Your message is most important.
Read Details