⬡ Quick Reference
Numbers you look up every shift.
Normal adult lab values and vital signs by age, in one place. Works offline.
🩸 Normal Adult Lab Values
| Complete Blood Count (CBC) | |
| Haemoglobin | M 13.5–17.5 · F 12.0–15.5 g/dL |
| Haematocrit | M 41–53% · F 36–46% |
| WBC | 4,000–11,000 /µL |
| Platelets | 150,000–400,000 /µL |
| Electrolytes | |
| Sodium (Na⁺) | 135–145 mEq/L |
| Potassium (K⁺) | 3.5–5.0 mEq/L |
| Chloride (Cl⁻) | 98–106 mEq/L |
| Calcium (total) | 8.5–10.5 mg/dL |
| Magnesium | 1.7–2.2 mg/dL |
| Arterial Blood Gas (ABG) | |
| pH | 7.35–7.45 |
| PaCO₂ | 35–45 mmHg |
| PaO₂ | 80–100 mmHg |
| HCO₃⁻ | 22–26 mEq/L |
| SaO₂ | 95–100% |
| Renal & Glucose | |
| BUN | 7–20 mg/dL |
| Creatinine | 0.6–1.2 mg/dL |
| Fasting glucose | 70–100 mg/dL |
| HbA1c (normal) | < 5.7% |
| Liver & Protein | |
| ALT | 7–56 U/L |
| AST | 10–40 U/L |
| Total bilirubin | 0.1–1.2 mg/dL |
| Albumin | 3.5–5.0 g/dL |
| Coagulation | |
| PT | 11–13.5 s |
| INR | 0.8–1.1 |
| aPTT | 25–35 s |
❤️ Normal Vital Signs by Age
| Age | Heart rate (bpm) | Resp rate (/min) | Systolic BP (mmHg) |
|---|---|---|---|
| Newborn (0–1 mo) | 100–160 | 30–60 | 60–90 |
| Infant (1–12 mo) | 90–160 | 30–53 | 70–100 |
| Toddler (1–3 y) | 80–130 | 22–37 | 80–110 |
| Preschool (3–5 y) | 80–120 | 20–28 | 80–110 |
| School-age (6–12 y) | 70–110 | 18–25 | 80–120 |
| Adolescent (13–18 y) | 60–100 | 12–20 | 90–120 |
| Adult | 60–100 | 12–20 | < 120 / 80 |
Adult also: Temperature 36.5–37.5 °C · SpO₂ 95–100% · Pain 0–10 scale. Children's rates run faster and fall with age.
🎓 For education & learning purposes only. Reference ranges vary slightly by lab and source — always follow your institution's reference values and clinical judgment.