Service 03 · In-Clinic

The gold standard, when it matters.

When a result will guide a diagnosis or a treatment plan, sample quality matters. A traditional venous draw by a trained phlebotomist delivers the volume and integrity the most demanding assays require.

What venous is for

Reference-grade test categories.


Ideal for tests that require higher accuracy or larger sample volumes than a capillary sample can provide.

⚖️

Full Hormone Panels

Testosterone (total & free), estradiol, progesterone, SHBG, DHEA-S, FSH, LH, prolactin and cortisol at reference accuracy.

🔬

Complete Blood Count (CBC)

Full hematologic detail — white cells, red cells, hemoglobin, hematocrit and platelets.

🧪

Comprehensive Metabolic Panel (CMP)

Kidney and liver function, electrolytes, glucose and protein in one draw.

🩸

Hemoglobin A1c

Three-month average blood sugar for diagnosing and monitoring diabetes.

🛡️

STD Blood Confirmation

Serology requiring larger volume and highest specificity — HIV, syphilis, hepatitis and more.

❤️

Advanced Cardiometabolic

ApoB, Lipoprotein(a), fasting insulin, homocysteine and full iron studies for deeper risk assessment.

Capillary or venous?

When to choose a venous draw.


  • You’re making a treatment or diagnostic decision
  • The panel needs a larger sample volume (full hormones, CBC)
  • You need the highest possible accuracy and specificity
  • Your physician has requested reference-standard results

For convenient monitoring of validated markers between visits, the at-home capillary panel is the easier choice.

Inside the GC Lab

Book your venous draw.


Reference-grade results, physician-reviewed, in the GC Lab premium report.

Book Appointment