1. What is the NHS Average Blood Pressure Calculator?

Definition: This calculator computes the average blood pressure according to NHS guidelines, excluding readings from the first day of measurement.

Purpose: It helps individuals and healthcare professionals accurately assess blood pressure trends over time.

2. How Does the Calculator Work?

The calculator uses the NHS-recommended formula:

Where:

• Readings — Blood pressure measurements in mmHg (systolic/diastolic)
• First day — All readings from the first day are excluded from calculation
• Average — Mean of all remaining valid readings

Explanation: The NHS recommends excluding the first day's readings as they may be artificially high due to "white coat syndrome" or measurement anxiety.

3. Importance of Accurate BP Measurement

Details: Proper blood pressure monitoring helps detect hypertension early and prevents cardiovascular complications.

4. Using the Calculator

Tips: Enter your blood pressure readings (one per line in 120/80 format). The calculator automatically excludes first day readings.

5. Frequently Asked Questions (FAQ)

Q1: Why exclude the first day's readings?
A: The NHS excludes them as they're often higher due to initial measurement anxiety or unfamiliarity with the process.

Q2: How many readings should I provide?
A: For best results, provide at least 7 days of readings (twice daily) as recommended by NHS.

Q3: What time of day should I measure?
A: Take readings at consistent times, ideally morning and evening, before meals or medication.

Q4: What's a normal NHS blood pressure range?
A: Ideal is below 135/85 mmHg for home readings (below 140/90 in clinic).

Q5: Should I use this instead of doctor's advice?
A: No, this tool complements but doesn't replace professional medical advice.