is it okay to answer this interview questions like this...

I've been struggling to come up with the answer for this question...

What do you have found to be the most difficult challenge and how did you handle it? (patient related)

not that I never had challenging patient, it's just I can't think of a particular one that stood out really. I honestly feel it's because I feel I go through different season of "challenge", and with each challenge I really don't rate them but just learn to overcome them.. is it an appropriate answer? with the following examples

for example, my first semester of nursing, my most difficult challenge during clinical is when I have patient that require total care and to get everything done efficiently but I learned to overcome that by developing a routine for myself. and by third semester (ICU), my most difficult challenge was learning to care for patient on ventilator, trauma patient, fresh open heart po-op patient - they were all difficult, but I overcome it by studied extra hard, asked many questions, and I did well in the clinical.

at work - (I worked in a doctor's office, before and during school). Prior to nursing school, my challenge was learning all the medical & insurance term, taking message for the doctor from nurses calling regarding abnormal lab - wondering what H&H means?? I overcame it by doing my homework after work - I write down a list of what I didn't understood at work today and do research online, if I still can't figure out, I turn to my co workers and manager for help.

Fast forward to a later time - As my manager let me handle more phone calls and in charge of the front office. My challenge became how to deal with angry patients! This took a bit longer, but I learned by observing how my co-workers and manager handle situations like this. Depending on situations, sometimes I would ask them what would they do when _______... and actually now I think the ability to successfully diffuse disgruntle clients has become one of my strength now...