What is the primary cause of ketosis in diabetic patients?

A Insulin deficiency ✓
B Glucagon excess
C Cortisol imbalance
D Aldosterone abnormality

Explanation

Insulin deficiency leads to increased glucagon levels, causing the liver to break down fat for energy and produce ketone bodies, resulting in ketosis.

Source

Guyton and Hall Textbook of Medical Physiology
Metabolic and Nutritional Disorders Diabetes Mellitus Ketosis and Diabetic Ketoacidosis Medium MEDICAL Confidence: high