Table 7.
Volume (mL) | Concentration (mg/mL) | Amount infused (mL) | Total mg per bag | |||
---|---|---|---|---|---|---|
Solution 1 | 250 | 0.0024 | 9.38 | 0.6 | ||
Solution 2 | 250 | 0.024 | 9.38 | 6 | ||
Solution 3 | 250 | 0.24 | 18.75 | 60 | ||
Solution 4 | 250 | 2.38 | 250 | 595.25 | ||
Step | Solution | Rate (mL/h) | Time (min) | Volume infused per step (mL) | Dose per step (mg) | Cumulative dose (mg) |
1 | 1 | 2.5 | 15 | 0.63 | 0.0015 | 0.0015 |
2 | 1 | 5 | 15 | 1.25 | 0.003 | 0.0045 |
3 | 1 | 10 | 15 | 2.5 | 0.006 | 0.011 |
4 | 1 | 20 | 15 | 5 | 0.012 | 0.023 |
5 | 2 | 2.5 | 15 | 0.63 | 0.015 | 0.038 |
6 | 2 | 5 | 15 | 1.25 | 0.03 | 0.068 |
7 | 2 | 10 | 15 | 2.5 | 0.06 | 0.13 |
8 | 2 | 20 | 15 | 5 | 0.12 | 0.25 |
9 | 3 | 5 | 15 | 1.25 | 0.3 | 0.55 |
10 | 3 | 10 | 15 | 2.5 | 0.6 | 1.15 |
11 | 3 | 20 | 15 | 5 | 1.2 | 2.35 |
12 | 3 | 40 | 15 | 10 | 2.4 | 4.75 |
13 | 4 | 10 | 15 | 2.5 | 5.95 | 10.70 |
14 | 4 | 20 | 15 | 5 | 11.91 | 22.61 |
15 | 4 | 40 | 15 | 10 | 23.81 | 46.42 |
16 | 4 | 80 | 174.38 | 232.5 | 553.58 | 600 |
Total time (min) = 399.38 = 6.66 h |
Solution 1 is a 1000-fold dilution of the final target concentration; solution 2 is a 100-fold dilution of the final target concentration; solution 3 is a tenfold dilution of the final target concentration, and the concentration of solution 4 is calculated by subtracting the cumulative dose administered in steps 1–12 from the total target dose and dividing by the bag volume. Values shown are rounded to the nearest 2 decimal places. Note for Tables 5, 6, and 7: the total volume and dose dispensed are more than the final dose given to the patient because many of the solutions are not completely infused