what is a c 1

It seems like you might be referring to A1C, which is a common blood test used to measure average blood sugar levels over the past 2-3 months. Here’s a quick overview:

• A1C Test: Also known as the hemoglobin A1C or HbA1c test, it measures the percentage of your red blood cells that have sugar-coated hemoglobin.
• Purpose: It is used to diagnose prediabetes and diabetes, as well as to monitor how well your diabetes is being managed.
• Normal Range:
  • Normal: Below 5.7%
  • Prediabetes: 5.7% to 6.4%
  • Diabetes: 6.5% or above

For more details, consult your healthcare provider or refer to trusted sources like the CDC.