Part of Lesson Plan: Intradermal Injections

Activity Overview / Details

Have all of your supplies needed for lecture/demonstration out and ready.  Have a desk ready by the door, with hot dogs and towels.  Write down the key terms that will be discussed throughout the period on the whiteboard.  Connect your camera/camcorder to your projector, or set up your elmo.

As students walk in, have them take one hot dog and one paper towel with them to their desks. Next, have students take out notetaking materials. Have them perform handwashing, this step will reinforce how critical this step is in order to avoid contamination. 

Begin by introducing and showing the students the supplies that will be used, along with a brief description/definition of the supplies.  Instruct students to take notes while you are describing the items.

Review the TB screening Questionnaire form with students.  This form asks crucial questions, prior to the administration of the PPD.  It also reminds students of the injection site, as well as when patients would return.

When a person with active Tuberculosis coughs, sneezes or speaks, bacteria are put in the air, and people nearby may breathe in these bacteria and become infected.  The PPD is a diagnostic test that is used to determine the patient's exposure to Tuberculosis.

If a patient indicates they have had the following, they should not recieve the skin test:

1) A past positive PPD skin test, then the patient should be referred for a Chest X-Ray for negative or positive TB confimration
2) They recieved BCG
3) They have recieved within the last six week, a recent live vaccine such as the influenza, H1N1, Measles, Mumps, Rubella or Varicella.
4) If they believe they might be pregnant. While the CDC believes PPD is safe, it is important to direct the patient to their healthcare provider for approval of PPD placement.

Play the "Administration of PPD" video to the students, prior to guiding them in practice.  Once the video has finished,  have students turn to a partner and practice explaining to each other their respective procedure.  Students may use the TB questionnaire during role playing exercise.

Tell students that when placing skin tests for TB testing they would use a specialized solution called PPD.  PPD stands for Purfied Protien Derviative. For today's exercise, sterile water or normal saline (sodium cloride--salt water) will be used.