Phlebotomy Technician Practice Exam (NCPT/CPT)

How deep is the subcutaneous dermal located in the tissue?

1. 2.0 mm

2. 1.6 mm

3. 1.0 mm

4. 2.5 mm

The correct answer is: 1.6 mm

The subcutaneous dermal layer is located 1.6 mm below the surface of the skin. The other options listed are not the correct depth and may lead to inaccurate measurements. Option A, 2.0 mm, is slightly too deep, while option D, 2.5 mm, is too deep and may hit muscle tissue. Option C, 1.0 mm, is too shallow and may only reach the epidermis layer. It is important to accurately measure the depth of the subcutaneous dermal layer for medical procedures such as injections or surgery. Therefore, the correct depth of 1.6 mm is crucial in ensuring proper administration and successful outcomes.