There are many reasons to have elevated liver enzymes.
Have you recently been tested for Hepatitis C antibodies? This test if positive would then be followed up with the HCV RNA by PCR test to determine if you are currently infected. This would be the only way to determine if you have hep c.
Is you doctor trying to determine the cause for your elevated liver enzymes?
My liver enzymes were only slightly above normal never even close to 100 while I was infected with hep c. In general liver enzymes are only slightly elevated in hep c for most people. Having enzymes that high is more like an acute phase of a hepatitis infection or other cause.
Only about 20% of patients infected with hep c for 20 years will develop cirrhosis. I was infected for 30 years before I was diagnosed with cirrhosis. That was 10 years ago and I am still in relatively good health and am not in liver failure. So without additional information I doubt you are experiencing liver failure.
Are you seeing your own doctor or are you going to the emergency room? Emergency rooms are not really the place to go to get diagnosed. They are for emergent care which should be followed up with your primary care physician. That way you can have continuity of care.
Which enzyme was elevated ALT, AST or some other?
From the Mayo Clinic website
Causes of elevated liver enzymes:
Over-the-counter pain medications, particularly acetaminophen (Tylenol, others)
Certain prescription medications, including statin drugs used to control cholesterol
Nonalcoholic fatty liver disease
Other causes of elevated liver enzymes may include:
Alcoholic hepatitis (severe liver inflammation caused by excessive alcohol consumption)
Autoimmune hepatitis (liver inflammation caused by an autoimmune disorder)
Celiac disease (small intestine damage caused by gluten)
Cytomegalovirus (CMV) infection
Hemochromatosis (too much iron stored in your body)
Polymyositis (inflammatory disease that causes muscle weakness)
Sepsis (an overwhelming bloodstream infection that uses up neutrophils faster than they can be produced)
Toxic hepatitis (liver inflammation caused by drugs or toxins)
Wilson's disease (too much copper stored in your body)
What I think is you should see your personal physician to get a proper diagnosis.