Canadian Practical Nurse Registration Examination (CPNRE) 2026 – 400 Free Practice Questions to Pass the Exam

Intradermal injections are commonly used for allergy tests, tuberculosis screening, and some vaccinations, where a small volume of fluid is delivered into the dermis, which is the layer of skin right beneath the epidermis. The maximum volume that can be injected intradermally is typically very low due to the limited space and the delicate nature of the tissue in this area.

The correct answer reflects the standard maximum volume for intradermal injections, which is generally between 0.1 to 0.2 mL. This volume is appropriate for ensuring that the solution is properly contained within the dermal layer without risking leakage into surrounding tissues, which can reduce the effectiveness of the test or treatment being performed.

Administering a larger volume could lead to discomfort, pain, or complications such as an increased risk of adverse reactions or improper absorption. Therefore, understanding the appropriate volume for intradermal administration is critical for safe and effective practice in nursing and healthcare settings.