Diagnosis
Because NAFLD causes no symptoms in most cases, it frequently comes to medical attention when tests done for other reasons point to a liver problem. This can happen if your liver looks unusual on ultrasound or if you have an abnormal liver enzyme test.
Tests done to pinpoint the diagnosis and determine disease severity include:
Blood tests
Complete blood count
Liver enzyme and liver function tests
Tests for chronic viral hepatitis (hepatitis A, hepatitis C and others)
Celiac disease screening test
Fasting blood sugar
Hemoglobin A1C, which shows how stable your blood sugar is
Lipid profile, which measures blood fats, such as cholesterol and triglycerides
Imaging procedures
Imaging procedures used to diagnose NAFLD include:
Abdominal ultrasound, which is often the initial test when liver disease is suspected.
Computerized tomography (CT) scanning or magnetic resonance imaging (MRI) of the abdomen. These techniques lack the ability to distinguish NASH from NAFLD, but still may be used.
Transient elastography, an enhanced form of ultrasound that measures the stiffness of your liver. Liver stiffness indicates fibrosis or scarring.
Magnetic resonance elastography, works by combining MRI imaging with sound waves to create a visual map (elastogram) showing the stiffness of body tissues.