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.
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