A 71-year-old woman who underwent hip replacement was discharged from the hospital with an appropriate postdischarge therapy that included daily subcutaneous injection of regular heparin. Which of the following lab exams should be performed frequently during the heparin treatment? Выберите один ответ:
a. Bleeding time
b. Fibrinolysis time
c. Platelet count
d. Plasma K+ level
e. Plasm a Na+ level
f. Red blood cell count (RBC)