To prepare the second dose as a drip, inject 15mg/kg TXA into a 100mL bag of NS. Using a dial-a-flow  drip set, place the drip rate at 13 mL/h (OR by drip count: 1 drip every 5 seconds for 60 drip/mL tubing; 1 drip every 18 seconds for 15 drip/mL tubing; 1 drip every 27 seconds for 10 drip/mL tubing).