Why do reference ranges differ between laboratories?

Glucose reference ranges vary by analyzer, sample type (serum vs plasma), fasting status, and species subpopulations. Always verify against your laboratory's validated reference interval.

Can stress affect blood glucose in dogs and cats?

Yes. Stress, excitement, and recent handling can cause transient hyperglycemia, especially in cats. If a mildly elevated value is unexpected, consider rechecking under calmer conditions or with a fasted sample.

When should I treat hypoglycemia urgently?

Glucose below 40 mg/dL (2.2 mmol/L) is generally considered critical and may cause seizures, weakness, or collapse. Immediate intervention is warranted if clinical signs are present.

Clinical decision support

Blood glucose unit converter

Convert between mg/dL and mmol/L with clinical interpretation.

Reference ranges & assumptions

Conversion factor

Dog ref min (mg/dL) Dog ref max (mg/dL)

Dog ref min (mmol/L) Dog ref max (mmol/L)

Cat ref min (mg/dL) Cat ref max (mg/dL)

Cat ref min (mmol/L) Cat ref max (mmol/L)

Defaults are commonly cited references. Adjust to match your laboratory.

Converted value

— mmol/L

Enter a value

Enter a glucose value and select units.

Reference range —

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Interpretation —

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Clinical next steps

Confirm fasting status and time of last meal.
Check for insulin overdose, diabetic crisis, or other causes.
Consider stress response or recent handling, especially in cats.
Evaluate for DKA if glucose is severely elevated.
Recheck with the same laboratory when trending.

Safety checks

This tool supports calculation and education only.
It does not diagnose, prescribe, or replace clinical references.
Verify with current formularies and hospital protocols.
Confirm units match your selections.

Basis and limits

Conversion: 1 mmol/L = 18 mg/dL (adjustable).
Dog: ~70–110 mg/dL (3.9–6.1 mmol/L).
Cat: ~70–120 mg/dL (3.9–6.7 mmol/L).
Scope: Converts units with cues. Does not diagnose.

Formula

mg/dL → mmol/L: value ÷ factor

mmol/L → mg/dL: value × factor

Blood glucose unit converter

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