To add to Sally's comment on his insulin adjustment, his Endocrinologist, not his PCP, should be aware that upping his Lantus dosage has not helped. You may wish to discuss premixed insulin, which is a combination of specific proportions of intermediate/long-acting and short acting insulin in one bottle or insulin pen. Btw, Lantus [not to be confused with Apridra] is a long acting insulin not short [fast].
Hi,
with bs of 350-500 before adding insulin, the oral meds were definitely not working.
Insulin is only his choice by this stage. However, sounds like he needs a lot more adjustment of his insulin. Perhaps you can attend some education classes so you can help him. Maybe you should also be attending his drs appointments with him to ask questions and make sure all possible is being done.
His level of blood sugars are very detrimental to his health. At his age it is critical to get things in better control and regain his appetite before.
Best wishes to you and your father.