Looking for good textbooks/ crash courses

So I am starting a new job, currently a surgical subspecialty PA, moving to a different subspecialty where I will be managing floor issues as well as my subspecialty issues for all of our primary patients (not consults) wondering if anyone has a good textbook/ study guide/ bible for common floor issues- new onset afib, ekectrolyte issues, etc. Would be a GREAT help- we manage all of this without really consulting out and I want to be as prepared as I can be. Thanks in advance 😊