IRCT201105105866N3 IRCT 2011-06-12 Golestan University of Medical Sciences Effects of injection duration on pain intensity and bruising اhospitalized patient A study on the effect of the duration of subcutaneous heparin injection on bruising and pain in patients hospitalized in the Panj Azar teaching hospital of Gorgan 2009-06-15 anticipated 119 Complete https://irct.ir/trial/6334 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Crossover, Purpose: Prevention. N/A Intervention 1: For each patient 10 second subcutaneous injection, will be performed and 12 hours later, 30 second injection perform for the same patient. Intervention 2: For each patient 30 second subcutaneous injection, will be performed and 12 hours later, 10 second injection perform for the same patient.

public Akram Sanagoo PHD

Golestan University of medical Sciences, Bouyeh School of Nursing & midwifery, Shastkola Road, Gorgan

Gorgan Iran (Islamic Republic of) +98 17 1443 0360 a_sanagu@yahoo.com Golestan University Of Medical Sciences scientific Ahmad Shir Afkan MD

Panj-Azar Teaching Hospital

Gorgan Iran (Islamic Republic of) +98 17 1222 0561 a_sanagu@yahoo.com sanagoo@goums.ac.ir Golestan University Of Medical Sciences Iran (Islamic Republic of) Inclusion criteria: Being a patient for heparin subcutaneous injection; conscious enough to participate and not manipulate injection area by rubbing, scratching and touching the injection site. Exclusion criteria: Discontinuation of subcutaneous injection of heparin or discharge patients within 48 hours, unilateral sensory and neurological defect, any type of skin lesion barrier to assessing bruising, allergic disease, pregnant patients, hematological diseases and the patients who had been given any other injections at the arm site apart from heparin during the days of the research 14 years 90 years Both Treatment - Other Treatment - Other For each patient 10 second subcutaneous injection, will be performed and 12 hours later, 30 second injection perform for the same patient. For each patient 30 second subcutaneous injection, will be performed and 12 hours later, 10 second injection perform for the same patient. Pain intensity. Timepoint: 48 to 60 hours after injection. Method of measurement: Visualَ Analog Scale. Extent of bruising. Timepoint: 48 to 60 hours after injection. Method of measurement: Using flexible transparent Ruler. Golestan University of Medical Sciences Approved 2009-06-14 Golestan University of Medical Sciences Ethics Committee Golestan University Of Medical Sciences, Gorgan, Iran Gorgan Iran (Islamic Republic of)