Calculate Blood Pressure

Blood Pressure Classification Calculator

function calculateBloodPressure() { var systolic = parseFloat(document.getElementById("systolicBP").value); var diastolic = parseFloat(document.getElementById("diastolicBP").value); var resultDiv = document.getElementById("bpResult"); var classification = ""; var advice = ""; var resultColor = ""; if (isNaN(systolic) || isNaN(diastolic) || systolic <= 0 || diastolic <= 0) { resultDiv.innerHTML = "Please enter valid positive numbers for both systolic and diastolic blood pressure."; resultDiv.style.backgroundColor = '#ffe0e6'; resultDiv.style.borderColor = '#dc3545'; return; } // AHA Guidelines for Blood Pressure Categories // Order of checks is important to catch critical conditions first if (systolic > 180 || diastolic > 120) { classification = "Hypertensive Crisis"; advice = "Seek immediate medical attention. This is a medical emergency."; resultColor = "#dc3545"; // Red } else if (systolic < 90 || diastolic = 140 || diastolic >= 90) { classification = "Hypertension Stage 2"; advice = "Your doctor will likely prescribe lifestyle changes and medication. Regular monitoring is crucial."; resultColor = "#dc3545"; // Red } else if (systolic >= 130 || diastolic >= 80) { classification = "Hypertension Stage 1"; advice = "Your doctor will likely recommend lifestyle changes and may consider medication. Regular monitoring is important."; resultColor = "#fd7e14"; // Orange } else if (systolic >= 120 && diastolic < 80) { classification = "Elevated"; advice = "You are likely to develop high blood pressure unless steps are taken to control it. Lifestyle changes are recommended."; resultColor = "#ffc107"; // Yellow/Orange } else { // systolic < 120 AND diastolic < 80 classification = "Normal"; advice = "Maintain a heart-healthy lifestyle to keep your blood pressure in the normal range."; resultColor = "#28a745"; // Green } resultDiv.innerHTML = "" + classification + "" + advice; resultDiv.style.backgroundColor = '#e9f7ef'; // Light green for normal, adjust for others resultDiv.style.borderColor = resultColor; if (classification === "Hypertensive Crisis" || classification === "Hypertension Stage 2") { resultDiv.style.backgroundColor = '#ffe0e6'; // Light red } else if (classification === "Hypertension Stage 1" || classification === "Elevated" || classification === "Low Blood Pressure (Hypotension)") { resultDiv.style.backgroundColor = '#fff3cd'; // Light yellow } }

Understanding Your Blood Pressure Numbers

Blood pressure is a vital sign that measures the force of your blood pushing against the walls of your arteries as your heart pumps blood. It's expressed as two numbers: systolic and diastolic.

What Do the Numbers Mean?

• Systolic Blood Pressure (Top Number): This is the pressure in your arteries when your heart beats (contracts). It's the higher of the two numbers.
• Diastolic Blood Pressure (Bottom Number): This is the pressure in your arteries when your heart rests between beats. It's the lower of the two numbers.

Why is Monitoring Blood Pressure Important?

Regularly checking your blood pressure is crucial because high blood pressure (hypertension) often has no symptoms. Left untreated, it can lead to serious health problems such as heart attack, stroke, kidney disease, and vision loss. Low blood pressure (hypotension) can also be a concern if it causes symptoms like dizziness or fainting.

Blood Pressure Categories (According to American Heart Association Guidelines):

• Normal: Systolic less than 120 mmHg AND Diastolic less than 80 mmHg.
• Elevated: Systolic 120-129 mmHg AND Diastolic less than 80 mmHg.
• Hypertension Stage 1: Systolic 130-139 mmHg OR Diastolic 80-89 mmHg.
• Hypertension Stage 2: Systolic 140 mmHg or higher OR Diastolic 90 mmHg or higher.
• Hypertensive Crisis: Systolic higher than 180 mmHg AND/OR Diastolic higher than 120 mmHg. This requires immediate medical attention.
• Low Blood Pressure (Hypotension): Generally considered Systolic less than 90 mmHg OR Diastolic less than 60 mmHg.

Factors Affecting Blood Pressure:

Many factors can influence your blood pressure, including:

• Age
• Genetics
• Diet (especially sodium intake)
• Physical activity level
• Weight
• Stress
• Smoking and alcohol consumption
• Certain medical conditions and medications

Tips for Maintaining Healthy Blood Pressure:

• Eat a balanced diet rich in fruits, vegetables, and whole grains.
• Reduce sodium intake.
• Engage in regular physical activity.
• Maintain a healthy weight.
• Limit alcohol consumption.
• Quit smoking.
• Manage stress effectively.
• Get regular check-ups and follow your doctor's advice.

Disclaimer: This calculator provides a general classification based on standard guidelines and is for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider for any health concerns or before making any decisions related to your health or treatment.