Blood test results: normal ranges to know
Key blood test reference ranges used by Thai hospitals (WHO/international standards):
- ▸Fasting blood glucose: 70–100 mg/dL (normal), 100–125 (pre-diabetes), 126+ (diabetes threshold)
- ▸HbA1c (3-month blood sugar average): <5.7% (normal), 5.7–6.4% (pre-diabetes), 6.5%+ (diabetes)
- ▸Total cholesterol: <200 mg/dL (desirable), 200–239 (borderline), 240+ (high)
- ▸LDL cholesterol: <100 mg/dL (optimal for most), <70 for high-risk individuals
- ▸HDL cholesterol: >60 mg/dL (good), <40 for men / <50 for women (low, risk factor)
- ▸Triglycerides: <150 mg/dL (normal), 150–199 (borderline), 200+ (high)
- ▸ALT/AST (liver enzymes): ALT normal 7–40 U/L, AST 10–40 U/L — elevated may indicate liver stress
- ▸Creatinine (kidney): Male 0.7–1.3 mg/dL, Female 0.6–1.1 mg/dL
- ▸TSH (thyroid): 0.4–4.0 mIU/L (normal); outside range requires follow-up
- ▸Uric acid: Male <7.0 mg/dL, Female <6.0 mg/dL — elevated linked to gout
Cancer marker results: what they mean
Cancer tumour markers included in Bangkok hospital packages — what to know:
- ▸AFP (alpha-fetoprotein, liver cancer): <10 ng/mL is normal; elevated doesn't mean cancer — can be elevated in liver disease, pregnancy, or other conditions
- ▸PSA (prostate, men only): <4.0 ng/mL (normal); 4–10 is a grey zone; >10 warrants urology referral
- ▸CA-125 (ovarian, women): <35 U/mL normal; elevated in many conditions (endometriosis, fibroids) not just cancer
- ▸CEA (colon/lung/breast): <2.5 ng/mL (non-smokers), <5.0 (smokers); mild elevation is common and often not cancer
- ▸CA 19-9 (pancreatic): <37 U/mL; single elevated result requires repeat testing — highly variable
- ▸⚠️ Important: A single elevated cancer marker result is NOT a cancer diagnosis. It requires clinical context, repeat testing, and specialist review. Do not panic over a borderline result.
CBC (complete blood count) explained
What each CBC measurement means:
- ▸Haemoglobin (Hb): Male 13.5–17.5 g/dL, Female 12.0–15.5 g/dL — low indicates anaemia
- ▸WBC (white blood cells): 4,500–11,000 cells/μL — high may indicate infection or inflammation
- ▸Platelets: 150,000–400,000/μL — low may affect clotting; high may increase clot risk
- ▸MCV (red blood cell size): 80–100 fL — low indicates iron-deficiency anaemia; high indicates B12/folate deficiency
- ▸Thai hospitals flag out-of-range values with H (high) or L (low) markers on the report