Which of the following areas is suitable for intramuscular injections?

• A. Inner forearm
• B. Scapular area
• C. Deltoid muscle
• D. Around the abdomen

Answer: (C)

The correct response is the deltoid muscle because it is one of the primary sites used for intramuscular injections. The deltoid muscle, located in the arm, is easily accessible and can accommodate a reasonable volume of medication, typically up to 1 mL for adults. When administering an intramuscular injection in this area, the site must be properly identified to avoid injury to underlying structures such as nerves and blood vessels.

Other areas mentioned, such as the inner forearm, scapular area, and around the abdomen, are not typically recommended for intramuscular injections. The inner forearm is usually reserved for subcutaneous injections, while the scapular area can pose risks due to proximity to major nerves. The abdomen is more commonly used for subcutaneous injections, especially for specific medications like insulin or heparin, rather than for intramuscular purposes. Therefore, the deltoid muscle stands out as the most suitable site for intramuscular injections, aligning with established nursing practices and guidelines.