Annual Laboratory Tests for Geriatric Patients
Core Laboratory Tests
- The American Geriatrics Society recommends a comprehensive metabolic panel, complete blood count, lipid profile, hemoglobin A1C, urinalysis with albumin-to-creatinine ratio, and thyroid-stimulating hormone as core annual laboratory tests for geriatric patients 1
- A complete blood count with differential is recommended to screen for anemia, infection, and blood disorders commonly found in older adults 1
- A comprehensive metabolic panel is recommended to assess kidney function, liver function, and electrolyte balance, which are particularly important in geriatric patients with multiple chronic conditions 1
- Hemoglobin A1C is recommended to screen for diabetes and prediabetes, which affect over 29% of people over age 65 1
- Lipid profile is recommended for cardiovascular risk assessment 1, 2
- Urinalysis with albumin-to-creatinine ratio is recommended to screen for kidney disease and urinary tract infections 1
- Thyroid-stimulating hormone is recommended as thyroid disorders increase with age 1
Diabetes Screening and Monitoring
- The American Diabetes Association recommends screening for geriatric patients without diabetes at least every 3 years if tests are normal 3
- For those with prediabetes, annual testing is recommended 3
- For geriatric patients with diagnosed diabetes, A1C testing is recommended at least every 6 months if meeting treatment goals, and more frequently if therapy has changed or not meeting goals 1, 2, 4
- A target A1C of 7.5-8% is recommended for most older adults with diabetes, and higher targets (8-9%) for older adults with multiple comorbidities, poor health, and limited life expectancy 1, 4
Cardiovascular and Renal Monitoring
- Blood pressure measurement is recommended at every visit 1, 2
- For patients on ACE inhibitors or ARBs, renal function and serum potassium levels should be checked 1-2 weeks after initiation, with each dosage increase, and at least yearly 4
- For patients on thiazide or loop diuretics, electrolytes should be checked 1-2 weeks after initiation, with each dosage increase, and at least yearly 4
Cancer Screening
- The American Family Physician recommends colorectal cancer screening for individuals older than 50 years, including annual fecal occult blood testing, flexible sigmoidoscopy every 4 years, and colonoscopy every 2 years for high-risk patients 5
- Prostate cancer screening is recommended for men older than 50 years, including annual digital rectal examination and prostate-specific antigen test 1, 5
- Breast cancer screening is recommended, including annual mammography for women older than 40 years 5
- Cervical cancer screening is recommended, including Pap testing every 3 years until age 65-70, and may be discontinued after age 65 in women with consistently normal previous tests 5
Additional Considerations
- Vitamin B12 levels should be checked annually in patients taking metformin 1
- Serum potassium monitoring is recommended for patients on ACE inhibitors, ARBs, or diuretics 1