Final answer:
The preferred angle of injection for IM administration is 90 degrees, although it may vary depending on factors such as muscle and medication.
Therefore the correct answer is option c 90 degrees
Step-by-step explanation:
The preferred angle of injection for intramuscular (IM) administration varies depending on the specific muscle and the medication being used. However, a common angle used for IM injections is 90 degrees. This angle allows for proper penetration of the needle into the muscle and ensures that the medication is injected into the correct tissue.
Using an angle of 90 degrees helps prevent accidental injection into a blood vessel, as the needle is inserted straight into the muscle rather than at an angle.
It's important to note that this angle may vary based on the individual's body composition and the healthcare professional's discretion. Always follow the guidance of a healthcare professional when administering injections.