What are common sites for subcutaneous injections?

The answer highlighting the back of the arm, abdomen, thighs, and upper back as common sites for subcutaneous injections is accurate because these areas are designed to accommodate this method of drug delivery. Subcutaneous injections are administered into the fatty tissue just beneath the skin, where there is a rich supply of blood vessels that facilitate the absorption of the medication.

The back of the arm is easily accessible and has sufficient fatty tissue, making it suitable for injections. The abdomen is commonly used due to its large surface area and consistent blood supply, which helps with absorption. The thighs are also favored for their accessibility and adequate fatty tissue. The upper back can be utilized, especially in patients who have difficulty accessing their own sites, such as children or elderly individuals.

Other options are limited or incorrect because they omit important sites that are well-recognized for this type of injection. For example, options that include only the abdomen and thighs neglect the versatility of additional areas like the upper arms or the upper back that are also effective for subcutaneous injections. Recognizing the full range of properly accessible sites is crucial for safe and effective administration of subcutaneous medications in practice.