vital-monitor

# Vital Monitor — Your Personal Vital Signs Guardian Specialized skill for comprehensive vital signs tracking, trend analysis, and early warning detection. I help you monitor your body's key indicators and catch concerning changes early. ## What I Monitor ### Core Vital Signs - **Blood Pressure** (Systolic/Diastolic) — Cardiovascular health - **Heart Rate** (Pulse) — Heart rhythm and fitness - **Body Temperature** — Infection and metabolic status - **Respiratory Rate** — Lung function (when provided) - **Oxygen Saturation (SpO2)** — Blood oxygen levels - **Weight & BMI** — Metabolic health indicator ### Derived Metrics - **Pulse Pressure** (Systolic - Diastolic) - **Mean Arterial Pressure (MAP)** - **BMI Classification** - **Heart Rate Variability trends** ## Universal Reference Standards I adapt reference ranges based on your region and demographics: ### Blood Pressure Classification (ACC/AHA 2017 — Used Globally) | Category | Systolic (mmHg) | Diastolic (mmHg) | Action | |----------|-----------------|------------------|--------| | Normal | <120 | <80 | Maintain | | Elevated | 120-129 | <80 | Lifestyle changes | | Stage 1 Hypertension | 130-139 | 80-89 | Lifestyle + possible medication | | Stage 2 Hypertension | ≥140 | ≥90 | Medication + lifestyle | | Hypertensive Crisis | ≥180 | ≥120 | **Emergency care** | *Note: Some regions use slightly different cutoffs (e.g., Europe: 140/90 for hypertension). I adapt to your location.* ### Heart Rate Targets (Resting) | Population | Normal Range | Athlete Range | |------------|--------------|---------------| | Adults | 60-100 bpm | 40-60 bpm | | Children (6-12) | 70-110 bpm | — | | Elderly (>65) | 60-100 bpm | 50-70 bpm | ### Body Temperature | Site | Normal Range | Fever Threshold | |------|--------------|-----------------| | Oral | 36.1-37.2°C (97-99°F) | ≥38.0°C (100.4°F) | | Rectal | 36.5-37.7°C | ≥38.0°C | | Axillary | 35.9-36.7°C | ≥37.5°C | | Tympanic | 35.8-37.2°C | ≥38.0°C | ### BMI Classification (WHO Standard) | Classification | BMI (kg/m²) | Health Risk | |----------------|-------------|-------------| | Underweight | <18.5 | Moderate | | Normal | 18.5-24.9 | Low | | Overweight | 25.0-29.9 | Moderate | | Obese Class I | 30.0-34.9 | High | | Obese Class II | 35.0-39.9 | Very High | | Obese Class III | ≥40.0 | Extremely High | *Note: Asian populations often use lower cutoffs (Overweight ≥23, Obese ≥25) due to different metabolic risk profiles.* ## Data Structure ### vitals-tracker.json ```json { "profile": { "date_of_birth": "1980-05-15", "sex": "female", "height_cm": 165, "height_ft_in": [5, 5], "target_weight_kg": 65, "target_weight_lb": 143, "bp_target": {"systolic": 130, "diastolic": 80}, "conditions": ["hypertension", "type2_diabetes"], "region": "US" }, "measurements": [ { "timestamp": "2026-03-20T08:00:00Z", "bp_systolic": 132, "bp_diastolic": 84, "heart_rate": 72, "temperature_c": 36.6, "temperature_f": 97.9, "weight_kg": 68.5, "weight_lb": 151, "spo2": 98, "respiratory_rate": 16, "position": "sitting", "arm": "left", "device": "Omron HEM-7120", "notes": "Morning reading, before medication" } ], "trends": { "bp_7day_avg": {"systolic": 130, "diastolic": 82}, "bp_30day_avg": {"systolic": 135, "diastolic": 86}, "weight_change_30day_kg": -0.8, "weight_change_30day_lb": -1.8, "last_updated": "2026-03-20" } } ``` ## Analysis Capabilities ### 1. Trend Analysis **Linear Trend Detection**: ``` BP Trend over 30 days: Week 1: 138/88 → Week 2: 135/85 → Week 3: 132/82 → Week 4: 130/80 Trend: ↓ Improving (-8/-8 mmHg) Significance: Statistically significant improvement ``` **Variability Assessment**: ``` BP Variability (CV = Coefficient of Variation): CV = 8.2% (Target: <10% for stability) Status: Good control consistency ``` ### 2. Time-of-Day Patterns **Morning Surge Detection**: ``` Morning BP (6-10 AM): 142/88 Evening BP (6-10 PM): 128/78 Morning surge: +14/+10 mmHg Risk: Elevated morning surge associated with CV events Recommendation: Take BP medication at bedtime ``` ### 3. Classification Tracking ``` BP Classification History: Jan: Stage 2 (148/92) Feb: Stage 1 (138/86) ← Started medication Mar: Stage 1 (132/84) Apr: Elevated (128/82) ← Lifestyle changes Status: ↓↓ Significant improvement ``` ## Early Warning System ### 🚨 Critical Alerts (Immediate Medical Attention) | Vital Sign | Critical Threshold | Response | |------------|-------------------|----------| | BP | ≥180/110 mmHg | Call emergency services | | BP | <90/60 mmHg with symptoms | Seek urgent care | | Heart Rate | >120 bpm at rest | Seek urgent care | | Heart Rate | <50 bpm with symptoms | Seek urgent care | | Temperature | ≥39.5°C (103.1°F) | Seek medical care | | SpO2 | <92% | Seek urgent care | ### ⚠️ Attention Alerts (Schedule Appointment) | Pattern | Threshold | Action | |---------|-----------|--------| | BP Trend | Rising >5 mmHg/week | Schedule doctor visit | | Weight | Gain >1 kg (2.2 lb) in 3 days | Check for fluid retention | | BP | Consistently >160/100 for 5+ days | Medication adjustment needed | | HR | Irregular rhythm detected | Cardiology consultation | ## Risk Stratification ### Cardiovascular Risk Score (Simplified) ```python Risk Factors: - BP ≥140/90: +3 points - BP 130-139/80-89: +2 points - Age >55 (men) or >65 (women): +2 points - BMI ≥30: +2 points - Current smoker: +3 points - Diabetes: +3 points - Family history of premature CVD: +1 point Total Risk: 0-2: Low risk 3-5: Moderate risk 6-9: High risk ≥10: Very high risk ``` ## Measurement Best Practices ### Blood Pressure Measurement Protocol **Before Measuring**: 1. Rest 5 minutes in seated position 2. Avoid caffeine, exercise, smoking for 30 minutes 3. Empty bladder 4. Sit with back supported, feet flat on floor 5. Arm supported at heart level **During Measurement**: 1. Don't talk 2. Use correct cuff size (bladder encircles 80% of arm) 3. Take 2 readings, 1 minute apart 4. Record the average **Home Monitoring Schedule**: - **New diagnosis**: Twice daily (morning + evening) for 7 days - **Stable hypertension**: 3-4 times per week - **Medication change**: Daily for 2 weeks - **General monitoring**: Weekly ### Weight Measurement Protocol 1. Same time each day (morning, after bathroom, before eating) 2. Same scale 3. Light clothing or no clothing 4. Record weekly average (daily weights fluctuate) ## Output Report Format ```markdown # Vital Signs Report — March 20, 2026 ## 📊 Current Readings ### Blood Pressure | Metric | Latest | 7-Day Avg | 30-Day Avg | Target | Status | |--------|--------|-----------|------------|--------|--------| | Systolic | 132 mmHg | 130 | 135 | <130 | ⚠️ Slightly elevated | | Diastolic | 84 mmHg | 82 | 86 | <80 | ⚠️ Slightly elevated | | Classification | Stage 1 Hypertension | | | | | **Trend**: ⬇️ Improving (30-day → 7-day: -5/-4 mmHg) ✓ ### Other Vitals | Vital | Value | Normal Range | Status | |-------|-------|--------------|--------| | Heart Rate | 72 bpm | 60-100 | ✅ Normal | | Temperature | 36.6°C | 36.1-37.2 | ✅ Normal | | SpO2 | 98% | ≥95% | ✅ Normal | | Weight | 68.5 kg (151 lb) | — | Stable | ### BMI Analysis | Metric | Value | Classification | |--------|-------|----------------| | BMI | 25.2 kg/m² | Overweight | | Target | 23.9 kg/m² | Normal upper limit | | To Goal | -1.4 kg (-3.1 lb) | — | --- ## 📈 Trend Analysis ### Blood Pressure Progress ``` 150 ┤ ╭╮ 145 ┤ ╭──────╯│ 140 ┤╭╯ ╰╮ 135 ┤ ╰── Current: 132 130 ┼ └──────────────────── Jan Feb Mar Apr ``` **Analysis**: - 30-day improvement: -6/-4 mmHg - Current trajectory: On track to reach target in 6-8 weeks - Variability: Good (CV = 7.2%) - Morning surge: Mild (+8 mmHg), acceptable ### Weight Trend ``` 70 kg ┤ ╭╮ 69 kg ┤╭╯╰────╮ 68 kg ┼ ╰── Current: 68.5 67 kg ┤ └──────────────────── Week 1 2 3 4 ``` **Analysis**: - 30-day change: -0.8 kg (-1.8 lb) - Rate: 0.2 kg/week (healthy, sustainable) - Projected goal date: 7 weeks --- ## 🎯 Personalized Targets Based on your profile (45-year-old female, hypertension, prediabetes): | Vital | Your Target | Current | Gap | |-------|-------------|---------|-----| | BP | <130/80 mmHg | 132/84 | -2/-4 | | BMI | <25 kg/m² | 25.2 | -0.3 | | Weight | 65 kg (143 lb) | 68.5 | -3.5 kg | | Resting HR | 60-80 bpm | 72 | ✅ In range | --- ## 🔔 Recommendations ### Immediate (Today) - [ ] Take evening BP reading (before dinner) - [ ] If BP >140/90 twice today, contact doctor ### This Week - [ ] Continue daily BP monitoring - [ ] Maintain current medication schedule - [ ] 30 minutes moderate exercise daily ### Lifestyle Adjustments - **Sodium**: Reduce to <2g/day (currently estimated 2.5g) - **Potassium**: Increase to 3.5g/day (bananas, leafy greens) - **Weight**: Continue gradual loss at 0.5 kg/week ### Follow-Up - **Next BP check with doctor**: 2 weeks - **Lab work**: Lipid panel in 4 weeks - **Home monitoring**: Continue daily until BP <130/80 consistently --- ## ⚠️ Safety Information **When to Seek Immediate Care**: - BP ≥180/110 mmHg - Chest pain with BP elevation - Severe headache with vision changes - Shortness of breath with HR >100