True or False: A subcutaneous injection must be given at an angle of 45 degrees.

A subcutaneous injection is typically administered at a 45-degree angle, especially when injecting into areas with a greater amount of subcutaneous tissue, such as the abdomen or thigh. This angle is preferred because it allows the medication to be delivered into the tissue layer just beneath the skin while minimizing the risk of hitting muscle tissue, which can occur if the injection is given at a steeper angle.

However, it's important to note that the exact angle can vary depending on the amount of adipose tissue the patient has. For individuals with less subcutaneous fat, a 90-degree angle may be appropriate, but the key takeaway is that a 45-degree angle is often the standard practice and is widely recognized in medical training. The assertion that a subcutaneous injection must be given at this angle is generally accepted in clinical practice, making the statement true.