![PSA: don't withhold a QT prolonging drug just because the computer calculated a QTc above 450-460 ms. The computer correction is usually (>50% by t - المسلسل من Isaac Lamb, MD @IsaacLamb01 - PSA: don't withhold a QT prolonging drug just because the computer calculated a QTc above 450-460 ms. The computer correction is usually (>50% by t - المسلسل من Isaac Lamb, MD @IsaacLamb01 -](https://pbs.twimg.com/media/FhZEttiXwAEs1Tl.jpg)
PSA: don't withhold a QT prolonging drug just because the computer calculated a QTc above 450-460 ms. The computer correction is usually (>50% by t - المسلسل من Isaac Lamb, MD @IsaacLamb01 -
Guidance on requirements for QTc measurement in ECG monitoring when introducing new drugs and shorter regimens for the treatment
![ECG obtained after cardioversion. The QTc as estimated by Fridericia... | Download Scientific Diagram ECG obtained after cardioversion. The QTc as estimated by Fridericia... | Download Scientific Diagram](https://www.researchgate.net/profile/Claus-Gravholt/publication/312675552/figure/fig2/AS:454343582326785@1485335359353/ECG-obtained-after-cardioversion-The-QTc-as-estimated-by-Fridericia-correction-formula_Q320.jpg)
ECG obtained after cardioversion. The QTc as estimated by Fridericia... | Download Scientific Diagram
![Optimal QT interval correction formula in sinus tachycardia for identifying cardiovascular and mortality risk: Findings from the Penn Atrial Fibrillation Free study. - Abstract - Europe PMC Optimal QT interval correction formula in sinus tachycardia for identifying cardiovascular and mortality risk: Findings from the Penn Atrial Fibrillation Free study. - Abstract - Europe PMC](https://europepmc.org/articles/PMC4724451/bin/nihms736390f2a.jpg)