It may be within the scope of practice of the competent and appropriately trained licensed practical nurse to administer and “read” the TB skin test under the direction of an authorized health care practitioner or under the direction and supervision of the registered nurse. A prescription or order from an authorized provider is required as TB skin test formulations are legend drugs. The Nursing Care Quality Assurance Commission recommends the licensed practical nurse use the Scope of Practice Decision Tree to determine if this activity is within the nurse's regulatory and individual scope of practice. The order may be made using a standing order. The prescriber or the registered nurse does not need to be on onsite when the licensed practical nurse administers medications. The licensed practical nurse should communicate with the medical provider or registered nurse as appropriate or follow standing orders for additional follow-up and referral. The Nursing Care Quality Assurance Commission recommends the licensed practical nurse follow the Washington State Tuberculosis Laws and Guidelines and the Centers for Disease Control Guidelines for TB Screening and Follow-Up. Refer to the Standing Order Advisory Opinion for more information on use of standing orders.