there are many signs of bipoar disorder such as: mood swings, sadness, elevated mood, anger, anxiety, apathy, apprehension, euphoria, general discontent, guilt, hopelessness, loss of interest, or loss of interest or pleasure in activities, agitation, crying, excess desire for sex, hyperactivity, impulsivity, restlessness, or self-harm,lack of concentration, racing thoughts, or slowness in activity, agitated depression, or paranoia, false belief of superiority, fatigue, or rapid and frenzied speaking ect.
According to my research on studies conducted by various medical professionals, I can say that based on the information provided within the question the instructor can make this realization if the student is seeing things as only right or wrong. This is because in the field of medicine you are dealing with people's lives, therefore every decision needs to be calculated before it's made in order to decide whether it is the right choice or not. A nurse cannot be indecisive.
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