Answer by Gavin Harrington. Confidence votes 4.0K. A bitch is a female canine. The same word is often used in reference to something unpleasant or difficult to do. E.g- We had to deliver twenty large crates to the top floor, and the lift was out-that job was a bitch.
After reading this article, the physician should be able to: 1  Proper equipment setup and positioning for UGCVC. 2  Ultrasound criteria for possible difficult UGCVC. 3  Procedural steps involved in locating, accessing and cannulating the internal jugular vein with ultrasound guidance.
The angle is to ensure the needle/medicine goes to the proper area, in this case, the fatty layer. A 90 degree angle will most likely land the needle in the muscle, so it is used for an IM shot. A 10 degree angle is used for an intradermal shot, as it will not make it past the skin layers.