How, specifically, have you used theory in your practice? As

How, specifically, have you used theory in your practice? 

As you emerge into your APRN role, how will you use theories to guide higher level practice? 

Minimum of 150 words, APA formate, formally written, at least two references, respond to another student, same question, written differently with at least  two different references from original post. Please follow all guidelines in answering question to avoid points deduction. NO LATE SUBMISSION.