Tag: Wheal

The correct angle for an intradermal injection is not 45 degrees, but a shallow 5 to 15 degrees, a crucial distinction that ensures proper medication delivery into the dermis for diagnostic tests like the Mantoux test. This low angle is fundamental to the accuracy of the test results and the effectiveness of the medication.

The intradermal (ID) injection route has the longest absorption time of all parenteral routes, making it ideal for sensitivity tests [1.4.2]. Answering 'What is an intradermal injection?' involves understanding its use in delivering a substance just below the epidermis for diagnostic purposes [1.2.2, 1.4.2].