Lifestyle

The Blood Test Most Annual Physicals Don’t Include

By Curtis Jones · September 5, 2026

Your annual bloodwork came back “normal.” Your doctor said everything looked fine. But the panel they ordered may have measured the most common things — and missed the ones that matter most for someone over 50.

Standard annual blood panels typically include a complete blood count, a basic or comprehensive metabolic panel, and a lipid panel. These tests screen for anemia, kidney function, liver function, blood sugar, and cholesterol. They’re valuable. They’re also incomplete — and the gaps are where preventable conditions hide.

Hemoglobin A1C — the three-month blood sugar average your fasting glucose doesn’t show. A fasting glucose test tells you what your blood sugar is at that moment. An A1C test measures your average blood sugar over the past two to three months, revealing patterns a single snapshot misses. An A1C between 5.7% and 6.4% indicates prediabetes — a condition affecting 115 million Americans, most of whom don’t know. Many primary care physicians order fasting glucose routinely but don’t add A1C unless the fasting number is already elevated. By then, the prediabetes may have been causing organ damage for years.

Thyroid-stimulating hormone — the $30 test that explains symptoms nobody else can. TSH is not included in most standard annual panels unless symptoms are reported or a prior abnormality exists. Hypothyroidism — which produces fatigue, weight gain, cold intolerance, and cognitive fog — affects roughly one in eight women over their lifetime and develops gradually enough that symptoms are attributed to aging rather than a treatable gland.

Vitamin D — the deficiency hiding behind your fatigue. Standard panels rarely include 25-hydroxyvitamin D. One in four American adults is deficient, and the symptoms — fatigue, bone pain, mood changes, muscle weakness — overlap with so many other conditions that deficiency goes undetected unless specifically tested. A single blood draw adds the test for roughly $30 to $50.

Ferritin — your iron stores, not just your iron level. A standard CBC measures hemoglobin, which tells you whether you’re anemic right now. Ferritin measures your iron reserves, which tells you whether you’re heading toward anemia. You can have a normal hemoglobin with critically low ferritin — meaning your body is depleting its stores to maintain blood levels. By the time the hemoglobin drops, the deficiency has been developing for months.

High-sensitivity C-reactive protein — the inflammation marker linked to heart risk. hs-CRP measures systemic inflammation, which plays a central role in cardiovascular disease. An elevated hs-CRP in someone with otherwise normal cholesterol identifies a person at higher risk for a cardiac event. The test costs roughly $20 and is widely available — but it’s almost never included in a standard annual panel unless the patient has known heart disease.

Your annual physical is designed to check the boxes. It’s not designed to find everything. Asking for three to five additional tests — A1C, TSH, vitamin D, ferritin, hs-CRP — costs $100 to $200 and reveals conditions that standard panels miss. The conversation takes one sentence: “Can we add these to my bloodwork this year?”