IRCT20160606028289N2 IRCT 2018-12-17 Rasht University of Medical Sciences The effect of cold pack on the complications of enoxaparin injection The effect of the cold pack on bruising and pain caused by subcutaneous injection of enoxaparin sodium on elderly patients 2018-11-22 anticipated 88 Complete https://irct.ir/trial/34640 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Randomization description: Each patient in the interventional group constituted his or her own control group. In this study, simple randomization was used. In the case of patients whose last digit of their ID number are odd, the left side of the abdomen are the interventional group and the right side of the abdomen are control group, and if they are paired, their right side of abdomen will be the interventional group and the left side of the of the abdomen are control group. N/A . Intervention 1: Intervention group: Elderly patients with a MMSE ≥25 and receiving enoxaparin, are randomly assigned to the right and left abdomen to the control and intervention groups. In the intervention group, for 2 minutes, the cold pack was placed before and after injection in the area, and the severity of the pain during the injection is measured by the visual analogue scale and in the case of bruising, the injection area is 24, 48 and 72 hours after injection with a ruler Millimeters are measured. In the control group, all procedures, except cold pack, will be performed in the same way as the intervention group. Intervention 2: Control group: In the control group, all procedures, except using a cold pack, will be performed in the same way as the intervention group. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is still not enough data