🔹 1. Blood Pressure: 120/80 mmHg

• Normal Range: 120 systolic (heart beating) / 80 diastolic (heart resting).

• Why it matters: Keeps your heart and arteries healthy. High or low pressure can increase the risk of heart attack, stroke, or organ damage.

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🔹 2. Pulse Rate: 70–100 bpm (beats per minute)

• Normal Resting Range: 60–100 bpm for adults.

• Why it matters: Indicates how efficiently your heart is working. A consistently high or low pulse may signal a heart or thyroid problem.

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🔹 3. Body Temperature: 36.8–37°C (98.2–98.6°F)

• Why it matters: Your body’s core temperature should stay stable. A fever may indicate infection, while low temperature can suggest hypothermia or other conditions.

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🔹 4. Respiratory Rate: 12–16 breaths/minute

• Why it matters: Reflects how well your lungs and heart are working. High rates may point to lung or heart problems; low rates can suggest nervous system issues.

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🔹 5. Hemoglobin (Hb)

• Male: 13–18 g/dL

• Female: 11.5–16 g/dL

• Why it matters: Hemoglobin carries oxygen in your blood. Low levels indicate anemia; high levels could be due to dehydration or lung disease.

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🔹 6. Cholesterol: 130–200 mg/dL

• Why it matters: Needed for hormone and cell production, but high levels can block arteries and increase heart disease risk.

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🔹 7. Potassium: 3.5–5.0 mmol/L

• Why it matters: Regulates heartbeat, nerve function, and muscle contractions. Too much or too little can cause heart problems or muscle weakness.

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🔹 8. Sodium: 135–145 mmol/L

• Why it matters: Maintains fluid balance, nerve function, and muscle contractions. Imbalance can lead to dehydration, confusion, or seizures.

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🔹 9. Triglycerides: ≤220 mg/dL

• Why it matters: A type of fat in your blood. High levels raise your risk of heart disease and stroke.

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🔹 10. Total Blood Volume: 5–6 liters (adult)

• Why it matters: Your body needs the right volume of blood for oxygen transport and pressure regulation.

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🔹 11. Blood Sugar

• Children: 70–130 mg/dL

• Adults (fasting): 70–110 mg/dL

• Why it matters: Regulates energy. Too high = diabetes risk; too low = hypoglycemia symptoms (dizziness, fainting).

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🔹 12. Iron: 8–15 mg/day intake

• Why it matters: Vital for hemoglobin production. Low iron = fatigue and weakness; high iron = risk of organ damage.

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🔹 13. White Blood Cells (WBC): 4,000–11,000 /µL

• Why it matters: Fight infections. High count = possible infection or inflammation; low count = risk of infection or immune deficiency.

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🔹 14. Platelets: 150,000–400,000 /µL

• Why it matters: Help your blood clot. Low count = bleeding risk; high count = clotting problems or inflammation.

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🔹 15. Red Blood Cells (RBC): 4.6–6 million /µL

• Why it matters: Carry oxygen to tissues. Low count = anemia; high count = risk of blood thickening.

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🔹 16. Calcium: 8.6–10.3 mg/dL (corrected unit)

• Why it matters: Essential for bones, muscles, nerves, and heart function. Imbalance may lead to cramps, spasms, or cardiac issues.

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🔹 17. Vitamin D3: 20–50 ng/mL

• Why it matters: Regulates calcium, supports immune and bone health. Deficiency can cause fatigue, bone pain, or depression.

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🔹 18. Vitamin B12: 200–900 pg/mL

• Why it matters: Vital for nerve function and red blood cell production. Deficiency may lead to memory issues, anemia, or numbness.