As we know, in windows phone 8, if we want to turn screen light off with app, we can call windows runtime component by p/invoke. example:
peripherally inserted central catheter (PICC) care, a nursing intervention from the Nursing Interventions Classification (NIC) defined as insertion and maintenance of a peripherally inserted central catheter either midline or centrally located. See also Nursing Interventions Classification.
You can be PICC competent after receiving the didactic and performing the required number of sticks. One certification which IS recognized nationally is the CRNI. That stands for Certified Registered Nurses Infusion.