Annual blood tests recommended for seniors (60+)
| Test | Why it matters after 60 |
|---|---|
| CBC (Full Blood Count) | Anaemia common in elderly — often from iron, B12 or chronic disease; leukaemia risk rises with age |
| TSH (Thyroid) | Hypothyroidism affects 1 in 5 women over 60 — causes fatigue, weight gain, cognitive slowing |
| Fasting glucose / HbA1c | Type 2 diabetes doubles in prevalence after 60; often asymptomatic initially |
| Lipid profile | Cardiovascular risk peaks after 60; statin therapy benefit greatest in high-risk seniors |
| eGFR / creatinine | Kidney function naturally declines 1% per year after 40 — medications need dose adjustment in CKD |
| Vitamin B12 | Absorption decreases with age and atrophic gastritis; neurological damage from deficiency is insidious |
| Vitamin D | Deficiency affects 70% of seniors; bone fracture risk rises dramatically with low Vitamin D |
| Calcium | Hypercalcaemia from hyperparathyroidism or malignancy — more common after 60 |
| PSA (men over 50) | Prostate cancer screening — discuss risks and benefits with doctor |
| Urine ACR | Early kidney damage — often from long-standing hypertension or diabetes |
Why seniors need different reference ranges
Age affects normal values
Some blood test reference ranges differ in older adults. Creatinine may appear falsely reassuring — muscle mass declines with age, producing less creatinine even when kidney function is poor. eGFR is more accurate than creatinine alone. Haemoglobin naturally declines slightly with age, but significant anaemia is never "normal ageing" and always needs investigation. TSH reference ranges shift slightly upwards with age — some experts suggest a TSH up to 6.0 mIU/L may be acceptable in those over 80.
Signs that should trigger urgent blood tests in seniors
- Unexplained weight loss — rule out cancer, thyroid disease, depression
- New confusion or memory decline — check B12, thyroid, glucose, calcium
- Fatigue worse than usual — anaemia, thyroid, kidney disease, diabetes
- Frequent falls — check Vitamin D, calcium, B12 for neurological causes
- New joint pain — uric acid (gout), CRP/ESR (inflammatory arthritis)
Senior health blood test checklist
- CBC / Full blood count — annually
- TSH — annually
- HbA1c — annually
- Lipid profile — annually
- eGFR + urine ACR — annually
- Vitamin B12 — annually (especially if on metformin or PPIs)
- Vitamin D — annually
- Calcium — annually
- PSA (men, discuss with doctor) — annually from age 50–70
Medical Disclaimer: For educational purposes only. Always consult a qualified healthcare professional for diagnosis and treatment.