fa بررسی مقایسه‌ای شدت درد ناشی از تزریق عضلانی به روش استاندارد و روش Z مراقبت‌هاي پرستاري Nursing Care پژوهشي Research <p><strong>Introduction:</strong> Pain caused by some therapeutic and nursing procedures has been a major concern of health care providers. Injection pain is a common complaint of patients. Materials and </p><p><strong>Methods:</strong> This quasi-experimental investigation was conducted to compare the pain intensity caused by standard, and Z-Track method for intramascullar (I.M) injection. The samples were 100 female nursing student volunteers that were selected by convenience sampling. Each sample was injected two times blindly: first by standard and then by Z-Track method, with 24 hours interval. None of them knew the method of injection for each time. The injection solution was 1 ml sodium chloride. Pain intensity was measured by a numerical pain assessment scale and pain experienced by every body was compared with herself. </p><p><strong>Results:</strong> The results showed that the pain associated with IM injection was significantly decreased when Z-Track method was used. </p><p><strong>Conclusion:</strong> The researcher can join to other authors stating that Z-Track can be the technique of choice for all I.M injections. </p> تزریق عضلانی،کاهش درد intramascullar injection ، Z-Track method ، pain reduction 8 15 http://hayat.tums.ac.ir/browse.php?a_code=A-10-25-279&slc_lang=fa&sid=1 S Jolaee سودابه جولایی Yes N Mehrdad ندا مهرداد No N Bahrani ناصر بحرانی No Sh Mohamadzadeh شهلا محمدزاده No