QTc-Calculator

This is a big update with new clinical tools, safer input and a layout that adapts to every screen. New: iPhone Duo support The app adapts as you fold and unfold. Unfolded, input and results sit side by side in two columns, each scrolling on its own. Folded, everything is in one list as usual. Better iPad support On iPad, in Split View and with Stage Manager, the app uses the two-column layout whenever the window is wide enough. It switches automatically when you resize the window. New: J-point calculations (JT interval) Enter a QRS duration to see the JT interval and JTrr (Rautaharju), which corrects JT for heart rate and sex. Each formula also shows its JTc. For wide QRS complexes, such as in bundle branch block, the app adds QTmc, the QT estimated with the Bogossian formula as if the QRS were narrow, rated against the normal QTc limits. New: Tisdale Score Estimate the risk of drug-induced QT prolongation in hospitalized patients. Age, sex, potassium, admission QTc, acute myocardial infarction, sepsis, heart failure, loop diuretics and the number of QTc-prolonging drugs add up to a low, moderate or high risk. The score opens with the QTc, sex and age (if entered) from your current calculation. New: Start from a QTc Many ECG machines print only a QTc, usually calculated with Bazett. Switch the top control to "QT", enter that QTc and choose its formula. The app calculates the QT back and converts it to all other formulas, so a Bazett QTc instantly becomes Fridericia, Framingham, Hodges and more. New: Plausibility checks Unusual heart rates, QT, QTc and QRS values, and a QT longer than the RR interval, are flagged right below the input field. This also applies to the baseline values, so a typo can't distort the "> 60 msec increase" alert. A short note also shows whether your number was read as a heart rate or as an RR interval. New: Choose your formulas Decide which formulas are shown and in which order. Hidden formulas are also left out of the summary and the short/long QT assessment. New: Share results Send a summary of all results to Mail, Messages or any other app, or copy it as before. The summary is now in the app's language. Scores start with your numbers The Gollob and Long QT scores now open with the points for the QTc you just calculated. Clearer layout Settings, limits, contact and acknowledgements have moved behind the gear icon. The main screen goes straight from your input to the results. More background New notes explain the formulas and the population curves. A new acknowledgements page lists all sources. Also new • On first launch, the app shows its disclaimer once and asks you to confirm it. • A button above the keyboard hides it, since number pads have no return key. • Many corrections in the German translation. • Small fixes and improvements throughout.