Lexapro is an antidepressant that affects the levels of certain chemicals in the brain that may be altered in people suffering from depression or anxiety. A typical starting dose is 10 mg taken once daily. After the medication has been fully metabolized, it is eliminated continuously from the body at a rate of approximately 2.3% per hour. Steady-state concentrations are achieved within 7-10 days of administration. Source: https://pubmed.ncbi.nim.nih.gov 1. A patient with takes their first dose of Lexapro. Use the exponential model P(t) = Poe-ktto show how much Lexapro is left one day (or 24 hours) later. Show your work. 2. This patient takes a second dose of Lexapro 24 hours after the first dose. With the amount remaining from the previous dose (see question #1), how much will they now have in their bloodstream? Show your work. 3. How much of this amount is left 24 hours after taking that that second dose? Show your work. 4. Complete this table, Time Amount Remaining from New Dose Total Amount in Blood displaying how Lexapro (days) Previous Doses (mg) Added (mg) Stream (mg) accumulates in the body 0 NA 10 10 over the course of 10 1 5.76 10 15.76 days. 2 9.07 10 3 10 4 10 5 10 6 10 10 8 10 10