The pseudosteady-state flow model assumes that, at a given time, the pressure in the matrix is decreasing at the same rate at all points and, thus, flow from the matrix to the fracture is proportional to the difference between matrix pressure and pressure in the adjacent fracture.
We always chuck out the vial after sticking it once!! Some medications (like insulin) are dispensed in multi-dose vials. OP, I don't understand why you would need to squirt the medication from the first vial into the second one. Draw it up as if you were drawing up a combo regular/NPH insulin. Draw from the first vial and then draw the remainder from the second vial into the syringe to get your full dose. Feb 5, '13.
The dosage is based on your weight, medical condition, and response to treatment. Carefully check that you have drawn the correct dose into the syringe. The markings on the syringe measure the amount of liquid (milliliters/mL), not the amount of medication (milligrams/mg). For example, if your doctor has directed you to use 8 milligrams of medication, draw the liquid up to the 0.4-milliliter mark on the syringe. A 12-milligram dose is 0.6 milliliters. Ask your doctor or pharmacist if you have any questions or if you are not sure how to measure your dose.