All lab markers

Heart & metabolic

HbA1c

Roughly your last three months of blood sugar. Some medications, including statins, nudge it upward. Higher results are the ones to watch. A common adult reference interval is 4–5.6 %.

Typical adult range

Reference interval
4–5.6 %
Often-cited tighter window
4.8–5.4 %

Three-month average glucose. Your own lab's printed range is the one that applies to your result.

In more detail

Reads low when red cells are young — check alongside reticulocytes.

What commonly moves it

  • Fasting Glucose
  • Insulin resistanceDrives small dense LDL, triglycerides, and inflammatory tone.

These are commonly described physiological relationships, shared for education. They are not a diagnosis and cannot account for your medications, history, or symptoms — discuss your results with a licensed clinician.

Watching HbA1c over time?

Dose Compass charts each draw, flags meaningful moves, and helps you prepare questions for your clinician.

Start tracking