create Peak flow variability calculator
The calculator will work out patient's diurnal variability percentage, using the Daily Amplitude Percent Mean Method.
The daily mean percentage column shows you the variability of each day as a percentage.
These scores are then added up and divided by the number of days, to give you the overall diurnal variability score.
A score of 20% or more can be used to confirm a diagnosis of asthma in a person whose clinical assessment suggests they are likely to have asthma.
For accurate results:
the PEFR should be recorded at least twice a day, on waking and ideally around 4pm when peak flow tends to ‘peak’.
the patient should perform at least 3 blows each time, and record the highest number .
the diary should be kept for 2-4 weeks.
Enter a minimum of 7 days of peak flow readings and click the calculate button.
Add "Print the result" button to download or print the calculated results to add to patient's notes.
I'll create a Peak Flow Variability Calculator based on your requirements. This calculator will compute the diurnal variability percentage using the Daily Amplitude Percent Mean Method. I'll implement this as a React component with the functionality you've described.
Let's create the Peak Flow Variability Calculator:
This Peak Flow Variability Calculator implements all the requested features:
The calculator uses Tailwind CSS for styling and shadcn/ui components for a polished, accessible interface. The main logic is contained in the PeakFlowCalculator component, which can be easily integrated into any page of your application.
To use this calculator:
This implementation provides a user-friendly interface for calculating peak flow variability and assists in the potential diagnosis of asthma based on the calculated scores.