Given the patient's use of lisinopril and the insulin human isophane/regular insulin combination, what is the primary consideration when integrating these treatments in managing this patient's health conditions?
Monitoring for potential hypertension, as lisinopril can cause blood pressure to rise in diabetic patients. Monitoring for potential liver toxicity, as lisinopril can interact with insulin to affect liver function. Monitoring for potential hyperkalemia, as both lisinopril and insulin can increase potassium levels. Monitoring for potential hypoglycemia, as lisinopril may enhance insulin sensitivity.