Final answer:
Long-acting insulin should never be withheld even if a patient is not eating, and any dosage adjustments for intermediate or long-acting insulin must be made with healthcare provider guidance.
Step-by-step explanation:
Basal or long-acting insulin should never be held even if a patient is not eating because it maintains the body's normal functions and prevents the blood glucose level from becoming too high when not eating. When adjusting insulin dosages due to a lack of food intake, one should consult with a healthcare provider, as the adjustments depend on the individual's specific needs and current blood glucose levels. Cutting back on insulin, whether it's intermediate insulin or long-acting insulin, should always be done under medical advice to avoid possible hypoglycemia or hyperglycemia.