upon admission to the hospital for a hip fracture, a baseline measurement of hemoglobin (a protein in red blood cells that carries oxygen) and hematocrit (the proportion of red blood cells in the blood) is performed.

vital signs and physical symptoms are monitored to evaluate the need for a blood transfusion, which is the process of receiving blood or blood components.

the medication tranexamic acid is administered through an intravenous route, which means it is delivered directly into a vein.

the dosage is 40 mg/kg, where mg/kg refers to milligrams of the medicine for every kilogram of body weight.

blood levels of hemoglobin and hematocrit are measured on day 0, day 1, day 2, and day 3.

additional hemoglobin measurements are taken at specific intervals labeled as preq, postq1, postq2, and postq3.

the total amount of blood loss is tracked from the time of the fracture until hospital admission, and from admission until surgery.

the date of the surgical intervention and the type of surgery performed are recorded.

the length of the hospital stay is monitored until the date of hospital discharge.

health status is monitored for potential adverse events, which are unexpected or harmful medical occurrences, at 3, 6, 9, and 12 months after the surgery.

observations include monitoring for blood clots in the legs or lungs, stroke, heart attack, infections, changes in mental clarity, or the need for reoperation.