You mention that you use Lewis for Med-Surg. In my view... especially on the baccalaureate level, a text specific to patho is a good idea. There could be (should be) readings assigned in the A&P...
I understand your point. Here is the deal, however... IF the HESI is a good predictor of NCLEX performance, then I think we can ethically require the students to pass the HESI before progressing....