← All Guides
Patient Guide

Essential Blood Tests for Seniors (60+)

After 60, certain health conditions become more common and easier to miss. Annual blood tests catch them early: when treatment works best. Here's what to ask your doctor for.

Written by Suman Konda, PharmD, Clinical Pharmacist · Editorial policy · Not medical advice

Last updated: · How we check our content

Annual blood tests recommended for seniors (60+)

TestWhy 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)Thyroid underactivity affects roughly 1 in 8 to 1 in 5 women over 60 depending on the population and whether subclinical cases are counted: causes fatigue, weight gain, cognitive slowing
Fasting glucose / HbA1cType 2 diabetes doubles in prevalence after 60; often asymptomatic initially
Lipid profileCardiovascular risk peaks after 60; statin therapy benefit greatest in high-risk seniors
eGFR / creatinineKidney function naturally declines 1% per year after 40: medications need dose adjustment in CKD
Vitamin B12Absorption decreases with age and atrophic gastritis; neurological damage from deficiency is insidious
Vitamin DDeficiency affects 70% of seniors; bone fracture risk rises dramatically with low Vitamin D
CalciumHypercalcaemia from hyperparathyroidism or malignancy: more common after 60
PSA (men over 50)Prostate cancer screening: discuss risks and benefits with doctor
Urine ACREarly 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

Related reading

Medical Disclaimer: For educational purposes only. Always consult a qualified healthcare professional for diagnosis and treatment.