cardiology
Bazett Corrected QT Interval (QTc) Calculator
Calculates heart rate-corrected QT interval (QTc) using the Bazett formula (most widely used clinically). Prolonged QTc is associated with risk of Torsades de Pointes and sudden cardiac death.
References
- Bazett HC. An analysis of the time-relations of electrocardiograms. Heart. 1920;7:353-370.
- Priori SG et al. 2015 ESC Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death. Eur Heart J. 2015;36(41):2793-2867.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
Drugs
- Ropeginterferon alfa-2b (Specialist drug) · Pegylated long-acting interferon alfa-2b
- Phenylephrine · Alpha-1 Adrenergic Agonist (Pure Vasoconstrictor)
- Pancuronium · Non-Depolarising Neuromuscular Blocking Agent (Long-Acting)
- Pancuronium bromide · Long-acting non-depolarising neuromuscular blocker
- Ropivacaine hydrochloride · Long-acting amide local anaesthetic
- Bupivacaine hydrochloride · Long-acting amide local anaesthetic
Pathways
- Acute Heart Failure · ESC 2021 Heart Failure Guidelines; NICE NG106
- NSTEMI / Unstable Angina · ESC 2020 NSTEMI Guidelines; NICE NG185
- New-Onset Atrial Fibrillation · ESC 2020 AF Guidelines; NICE NG196
- Hypertensive Emergency · ESC/ESH 2018 Hypertension Guidelines; NICE NG136
- Bradycardia Management · Resuscitation Council UK ABCDE; ESC 2021 Pacing Guidelines
- Ventricular Tachycardia / Fibrillation · Resuscitation Council UK ACLS; ESC 2022 Ventricular Arrhythmia Guidelines
Decision support only — verify against MDCalc, NICE, or your local guideline before clinical use.