1)Objectives: To assess the effect of Changing weight of sand bag on the bleeding, hematoma, back pain, urinary retention and Patient comfort after cardiac catheterization.
2) Design: This is a quasi-experimental study, including four groups of 35 patients (140 samples with random sampling).
3)Setting and conduct:Patients were randomly assigned to intervention and control groups are examined.
4)Participants including major eligibility criteria:Inclusion criteria: non-emergency catheterization; withdrawal of arterial sheath immediately after angiography; aged 18-65; informed consent to participate in the study.
Exclusion criteria: the need for cardiopulmonary resuscitation during angiography; vascular injury during the procedure; patient unwillingness to participate in the study.
5)Intervention:The control group received a common protocol, will be the use of sandbags is 4 kg to 6 hours. Patients in the intervention group of sandbags weighing 3/5, 3 and 2/3 will be used for 6 hours.
6)main outcome measures (variables): the amount of bleeding, hematoma, back pain, urinary retention and Patient comfort were measured in 0, 1, 2, 4, 6,8 and 24 hours after angiography. Data were collected by the use of personal information questionnaire and Numeric Pain Intensity Scale and Christenson check list for investigating the amount of bleeding and hematoma and Visual comfort scale .