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When you seem sober but your BAC reads high

On Behalf of | Mar 2, 2026 | Criminal Defense, DUI |

You had a few drinks with friends and you feel perfectly fine. Then Easton, Pennsylvania police stopped you and a breath test revealed a high blood alcohol content (BAC). That mismatch can leave you confused and scared, especially when officers trust the machine more than what they see. But several factors can explain the gap.

Why your BAC may not match how you feel or function

Your body absorbs alcohol at different rates depending on your size, what you ate and your health or tolerance. Alcohol can keep rising in your blood after you stop drinking, so you may look steady while your blood alcohol concentration climbs.

Additionally, acid reflux or recent food and drink can raise Breathalyzer readings. People on ketogenic diets or with diabetes may exhale acetone or isopropyl alcohol, and older machines can mistake those compounds for drinking alcohol.

Mechanical errors in Breathalyzers can also result in false BAC reading. However, proving this may be challenging because the process is technical and time consuming. You need to speak with a lawyer who can help subpoena the device used for inspection.

Why BAC still carries weight

In Pennsylvania, a BAC of .08% or higher counts as per se evidence of driving under the influence (DUI). This means the prosecutor does not have to prove you were weaving or slurring your speech, they only need to prove the officer administered the test correctly and the result was accurate. The state sets lower limits for commercial drivers (.04%) and drivers under the age of 21 (.02%), so even lower readings can carry legal consequences.

You have the right to challenge a Breathalyzer test but this often requires several complex steps that take time and money. So remember that even if this option is available, the breath test result will usually stand in the short term. It can still trigger immediate actions like arrest, license suspension and charging decisions.

Protect your legal options

A high BAC can affect your personal and professional life and can show up on background checks and online searches. It can also bring unexpected expenses like higher insurance premiums and court costs. A skilled lawyer can help explain your options and understand your next possible steps.

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