Aldolase A
Aldolase A
High
8.5U·L⁻¹Ref 1.2–7.5 U·L⁻¹
Z +2.63↑ Bad

The card shows an example result of 8.5 U·L⁻¹, which is 2.63 SD above the mean.

What it measures

Aldolase A is an enzyme in the glycolysis pathway, most abundant in skeletal muscle. It leaks into the blood when muscle cells are damaged.

Reference range

FieldValue
AbbreviationAldolase A
GroupMuscle
UnitU·L⁻¹
Healthy range1.2–7.5
Mean4.35
SD1.575
Direction↑ Bad — a raised value is the concern.

The mean is (low + high) / 2 and the SD is (high − low) / 4, so the healthy range covers Z from −2 to +2.

Reading the result

  • High — Suggests muscle injury or inflammation. It can rise in some muscle diseases even when CK is normal.
  • Low — Not a concern.

Notes

  • Like CK, it rises after strenuous exercise.
  • Liver injury and haemolysis can also raise it.
  • This page is general information, not medical advice. Discuss results with a clinician.