what can cause false high blood sugar readings
Asked by: SugarWatcher99
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Community Answer
Answered by Dr. Emily Carter, MD 🩺
Several factors can lead to falsely high blood sugar readings, including:
- Improper Meter Use: Not following the instructions for your glucose meter, such as using expired test strips or not calibrating the device.
- Contaminated Fingers: Residue from food, lotion, or other substances on your fingers can affect readings.
- Dehydration: Low fluid levels in the body can concentrate blood sugar, leading to higher readings.
- Certain Medications: Drugs like corticosteroids or beta-blockers can increase blood sugar levels.
- Stress or Illness: Physical stress, infections, or illnesses can temporarily raise blood sugar.
- Blood Sample Issues: Using a blood sample from a site other than your fingertip (e.g., forearm) may give less accurate results.
If you suspect a false reading, wash your hands thoroughly and retest. Consult your healthcare provider if inconsistencies persist.