What is there not to understand? Routine issues requiring your attention, which may not require in person evaluation:
Pain medication
Insomnia
Diet orders, DVT prophylaxis orders the admitting resident forgot to put in
Radiographs, labs, done in the afternoon that need follow up
Issues that may (should?) require in person evaluation:
fever
fall
urinary retention, catheter issues
Hypertensive or tachycardic episodes in neuro-rehab patients
Altered mental status, possible recurrent strokes in stroke patients
PEG tube problems
Codes
And the list goes on and on. Maybe you have medicine consulted on all of them and in house to see the patient, but if you don't - or if they're in another building or normally only there 8-5 - then you will be needed to address those issues.