The courses I've been involved with have used not one but several. For my PCP I had
Mosby's Paramedic Text (2nd ed)
Human Anatomy and Physiology, Marieb (I liked this one)
Understanding Pathophysiology, Huether & McCance (2nd ed)
Mosby's Nursing and Allied Health Medical Dictionary
Exploring Medical Language, Mosby's
Differential Diagnosis of Arrhythmias, Davis (Not sure where this came from)
For my ACP I have
Mosby's Paramedic Text (Revised 3rd ed)
Anatomy and Physiology, Thibodeau & Patton
Understanding Pathophysiology, Huether & McCance (3rd ed)
Lippincott's Pharmacology, (3rd ed)
12 lead ECG in Acute Coronary Syndromes, Phalen & Aehlert(Revised 2nd ed)
ECG's Made Easy, Aehlert (3rd ed)
Pediatric Advanced Life Support, Course Guide and Providers Manual (2006)
Advanced Cardiovascular Life Support, Providers Manual (2006)
Neonatal Resuscitation Textbook, NRP, (5th ed)
Exploring Medical Language, Mosby's (6th ed)
Many come with CD's and supporting web sites. If I could only get a couple I would start with an A & P and the dictionary. Then a pathophysiology and a paramedic text. Follow those up with speciality books. No one book has it all, you will need several as you will reference them time and time again. These are all good books, but can be a little hard on the head and wallet.
As an aside you will need every brain cell you can bring to the task. Try not to kill off too many. I wish I hadn't.

