Jennaroo, I am sorry to hear that this happened to you. As a student who was also straight A and labeled as an "overachiever" this is something that resonates strongly with me. First, I encourage you to humbly evaluate the situation to see if you were indeed incorrect...rarely the case it helps to begin assessing each situation as an opportunity to learn. However, targeting a student for a simple mistake neither helps to educate the student nor does it promote better patient care. In fact, a new study suggests that rudeness - specifically in the healthcare workplace - can be detrimental to patient outcomes, even when the rudeness is not directed at the patient but rather the care provider. This is something to be considered by your instructor... Ultimately, your instructor is doing NOTHING to educate you in this scenario. When no explanation is provided and a sound rationale explained, you are no better off providing the best patient care, which may compromise outcomes - PRIORITY #1 for a healthcare provider. The objective of a student is to LEARN. While I may argue that some of the best learning opportunities arise from mistakes, this is not an excuse to berate a student for an insignificant detail which is far from being life-threatening. I am not sorry to say that I am abhorred with the behavior exhibited by your "instructor." You have shown initiative in developing critical thinking skills, evidence of keen planning abilities (my ICU mentality of "always prepare for the worst"), and a particular interest in providing the best patient care using research and evidence-based approved nursing diagnoses. I see nothing wrong in how you handled the assignment. Emotions sometimes get the best of us, and it is easy to let doubt conquer the situation, but I urge you to speak privately with the course professor. If s/he cannot do anything, escalate the chain of command up to the Dean of the school. Nursing is not about eating your young - it is about fostering an environment in which we can all feel safe asking questions and seeking most appropriate responses for our #1 goal: patient safety. Don't let this drag you down. With your attitude you will certainly make a fine nurse someday soon. Best of luck!