“The “Hand as foot” is an innovative teaching method proposed by Professor Liu Rui and his team after 20 years of research and practice.4 This method enables students to deeply understand the obscure written knowledge, and is easier to master, which improves the level of clinical teaching.The left thumb is used to simulate the superior vena cava, the index finger is used to simulate the basilic vein, and the middle finger is used to simulate the cephalic vein，to simulate the best position of peripherally inserted central catheter catheter（Fig. 1 B）.The left thumb is used to simulate the superior vena cava, the index finger is used to simulate the basilic vein, the middle finger is used to simulate the cephalic vein, and the right hand is clenched into a fist to simulate the right atrium, o simulated the tip of the peripherally inserted central catheter catheter is located in the right atrium（Fig. 1C）.The left thumb is used to simulate the superior vena cava, the index finger is used to simulate the basilic vein, the middle finger is used to simulate the cephalic vein, and the right thumb is used to simulate the internal jugular vein, to simulated the tip of the peripherally inserted central catheter catheter is located in the ipsilateral internal jugular vein (Fig. 1 D).The left thumb is used to simulate the superior vena cava, the index finger is used to simulate the basilic vein, the middle finger is used to simulate the cephalic vein, and the right thumb is used to simulate the contralateral subclavian vein, to simulated the tip of the peripherally inserted central catheter catheter is located in the contralateral subclavian vein (Fig. 1 E).”

Li L, Li X, Zhang R, Liu M. The “Hand as Foot” teaching method in the peripherally inserted central catheter catheter tip position. Asian J Surg. 2021 Oct 22:S1015-9584(21)00542-X. doi: 10.1016/j.asjsur.2021.08.040. Epub ahead of print. PMID: 34696970.