The selected site is cleansed with an antimicrobial and is allowed to dry. It is injected with the dominant hand using a quick, darting motion perpendicular to the patient's body at an angle between 72 and 90 degrees, as a faster injection is less painful. The needle is then stabilized with the nondominant hand while the dominant hand slides to the plunger to slowly instill the medication, as a rapid injection causes more discomfort. The CDC does not recommend the outdated practice of aspirating for blood to rule out injecting into a blood vessel. The needle is withdrawn at the same angle inserted. Using the "Z track" or zigzag technique is recommended, where the skin is pulled and held down to one side with the nondominant hand about an inch and after the needle is withdrawn the displaced skin is allowed to return to its normal position. This is to ensure that the medication does not leak back along the needle track. Gentle pressure is applied with a gauze but the site is not massaged to prevent forcing the medication into subcutaneous tissue. 
Conservatives also pride themselves on concern for the integrity of the culture as well as policies that let economic activity flourish. Yes, drug abusers are caught up in a dangerous world, but safe use sites could help mitigate its effect on the rest of the culture. The most obvious benefit must be given appropriate weight: fewer users will be shooting up in the open (a common occurrence in San Francisco), blighting local businesses, discouraging tourists, and setting an awful sight before young children. Vancouver’s site provides strong evidence that at least the facility can prevent deaths and steer at least a small percentage of users toward rehabilitation. That’s good for users, their families, and the culture.
First you must determine which hand you will use to locate the IM injection site by the position the patient is in, for example if the patient is on their right side you would use your right hand to find the landmarks. So using the example, a person is lying on their right side so you would take your right hand and place it on their greater trochanter, depending on the length of your fingers you would then place your index finger on the anterior superior iliac spine or point your finger in that direction with the thumb pointed at the groin, all other fingers should be pointed at the patient's head. Once your hand is in position move your middle finger back along the iliac crest towards the buttock as far as you are able to go. This forms the triangle with the index and middle finger and the center of that triangle is the injection site for a ventrogluteal injection.