Yes. She is highly alarmed: saying hyperthyroid and occult blood in GI.The low ferritin may have more to do with your high adrenaline/noradrenaline results you posted before. Has the doctor seen those results?
She does not know anything at all about blood catecholamines and won't be able to make any connection.
With rats with low ferritin, low TSH, high NE, lowish pulse (70), good lipid profile, are there any other tests the technician might do?Are there any further do's or don'ts?
This rat is not showing any outward signs of distress. It is playful, energetic with the group, non-aggressive, good appetite and good stools.
When I looked up "occult blood in GI", it seems far-fetched for this rat. Plus the further testing for it is quite invasive.