Creatinine 1.2 mg/dL

What 1.2 mg/dL means — men

A creatinine of 1.2 mg/dL falls within the typical adult male reference range of about 0.7 to 1.3 mg/dL (106.08 µmol/L in SI units).

Your kidneys are clearing muscle waste from the blood at the expected rate. Keep in mind that one normal creatinine does not completely rule out early kidney disease — a lot of filtering capacity can be lost before creatinine leaves the normal range. That is why labs also report eGFR, and why people with diabetes or high blood pressure get a urine albumin check as well.

The typical adult male reference range is about 0.7 to 1.3 mg/dL (62 to 115 µmol/L), following the convention used by most US laboratories.

Sensible next steps

1. No action is needed for this result
2. Note the number — knowing your personal baseline makes future results much easier to interpret
3. If you have diabetes, high blood pressure, or a family history of kidney disease, keep up yearly checks that include eGFR and urine albumin
4. Bring any questions about kidney health to your next routine visit with your doctor

What 1.2 mg/dL means — women

A creatinine of 1.2 mg/dL is just above the typical adult female range, which tops out around 1.1 mg/dL at most US labs.

This is only a small elevation, and everyday factors — a dehydrated morning, a recent hard workout, creatine supplements, or an athletic, muscular build — can fully explain it. That said, because women's baseline is lower, a value here represents a proportionally bigger shift than the same number would in a man, so it earns a proper recheck. In pregnancy, a value in this range is more unusual and should be reviewed sooner.

The typical adult female reference range is about 0.6 to 1.1 mg/dL (53 to 97 µmol/L), the convention used by many US laboratories; some references cite slightly lower limits (for example, Mayo Clinic lists 0.59 to 1.04 mg/dL).

Common causes

• Dehydration before the blood draw
• Recent intense exercise
• Muscular or athletic build
• Creatine supplements
• A large cooked-meat meal before the test
• Medications such as trimethoprim (common in UTI treatment) or cimetidine, which raise creatinine without harming kidneys
• Early decline in kidney filtration
• Lab-to-lab variation

Symptoms that can go with it

• Usually none at this level

Sensible next steps

1. Check the eGFR on the same report — it accounts for your age and sex
2. Repeat the test in a few weeks, hydrated and without a preceding heavy workout or meat-heavy meal
3. Note any recent antibiotics (especially trimethoprim) or supplements to mention
4. If you are pregnant, contact your prenatal team rather than waiting
5. Review the result and recheck plan with your doctor routinely