Which of the following statements regarding subcutaneous medication administration is correct? Select one: A. A subcutaneous injection involves using a 20- or 21-gauge needle. B. The needle is inserted at a 90° angle during a subcutaneous injection. C. The rectus femoris muscle is a common site for subcutaneous injections. D. Volumes of a drug given subcutaneously are typically 1 mL or less.

### D. Volumes of a drug given subcutaneously are typically 1 mL or less.

## Step1: Understanding the options### Each option presents a statement about subcutaneous medication administration. We need to identify which statement is correct.## Step2: Analyzing each option### Let's analyze each option one by one.## Step3: Analyzing Option A### Option A states that a subcutaneous injection involves using a 20- or 21-gauge needle. This is not always true. The gauge of the needle used for a subcutaneous injection can vary depending on the patient's body type, the medication being administered, and other factors.## Step4: Analyzing Option B### Option B suggests that the needle is inserted at a 90° angle during a subcutaneous injection. This is incorrect. The needle is typically inserted at a 45° angle to reduce the risk of the medication being injected too deeply.## Step5: Analyzing Option C### Option C states that the rectus femoris muscle is a common site for subcutaneous injections. This is not correct. The rectus femoris muscle is not a common site for subcutaneous injections. The common sites for subcutaneous injections are the abdomen, the upper arm, and the thigh.## Step6: Analyzing Option D### Option D states that volumes of a drug given subcutaneously are typically 1 mL or less. This is correct. Due to the subcutaneous administration route, the volume of medication that can be administered is limited.