The 20 Most Popular Lab Tests

Test Smartly Labs offers fast, reliable, and comprehensive lab tests to help you understand your body better. Whether you need a routine checkup, specific health screening, or a test for a medical condition, these 20 most popular lab tests provide critical insights into your well-being—the 20 Most Popular Lab Tests & What They Reveal

1. Complete Blood Count (CBC) with Differential & Platelet Count

A CBC test measures your red and white blood cells, hemoglobin, hematocrit, and platelets to check for infections, anemia, immune system disorders, and blood clotting issues. Best for: General health screening, diagnosing infections, anemia, and blood disorders.

2. Comprehensive Metabolic Panel (CMP14)

A CMP test evaluates kidney and liver function, blood sugar levels, electrolytes, and proteins to assess your overall metabolic health. Best for: Checking organ function, monitoring diabetes, and diagnosing metabolic disorders.

3. Cholesterol (Lipids) Profile Comprehensive:

This test measures LDL ("bad" cholesterol), HDL ("good" cholesterol), total cholesterol, and triglycerides, helping to assess heart disease risk. Best for: Monitoring heart health and managing cholesterol-related conditions.

4. Thyroid Stimulating Hormone (TSH)

A TSH test checks thyroid function, helping diagnose hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid). Best for: Individuals experiencing fatigue, weight gain, mood changes, or metabolism issues.

5. Hemoglobin A1c (Hgb A1c)

This test measures average blood sugar levels over the past 2-3 months and is critical for diabetes management. Best for: Diabetics, prediabetics, and those at risk for high blood sugar.

6. Vitamin D, 25-Hydroxy

A Vitamin D test measures blood levels of Vitamin D, which is essential for bone health, immune function, and mood regulation. Best for: Individuals with fatigue, muscle weakness, depression, or osteoporosis concerns.

7. Prostate-Specific Antigen (PSA) Test

PSA test screens for prostate health and helps detect early signs of prostate cancer or prostate enlargement. Best for: Men over 40, especially those with a family history of prostate cancer.

8. Testosterone, Total, Serum:

Measures testosterone levels, which affect muscle mass, mood, energy, libido, and overall health. Best for: Men experiencing low energy, reduced muscle mass, erectile dysfunction, or hormonal imbalance.

9. STD / STI Profile Ultimate with HIV

A comprehensive panel screening for multiple sexually transmitted infections, including HIV, chlamydia, gonorrhea, syphilis, herpes, and more. Best for: Anyone who is sexually active, has multiple partners, or wants a routine sexual health check.

10. COVID-19 Antibody Test IgG for SARS-CoV-2 Virus

This test detects antibodies to the COVID-19 virus, indicating past infection or vaccination response. Best for: Those who want to check their immunity after COVID-19 exposure or vaccination.

11. Hepatitis Panel (HAV or HBV Acute Infections)

A hepatitis panel checks for active infections of hepatitis A or B, which affect the liver. Best for: Those at risk of hepatitis exposure or experiencing liver disease symptoms.

12. Vitamin B12:

A Vitamin B12 test evaluates B12 levels, which are crucial for nerve function, brain health, and red blood cell production. Best for: People with fatigue, tingling in hands and feet, memory problems, or anemia.

13. Ferritin: Serum

Ferritin levels measure iron storage in the body, helping diagnose iron deficiency or overload. Best for: Individuals with fatigue, hair loss, dizziness, or anemia.

14. C-Reactive Protein, CRP (High-Sensitivity, Cardiac CRP, Preferred)

A high-sensitivity CRP test detects inflammation in the body, which is linked to heart disease, autoimmune disorders, and chronic illness. Best for: Monitoring heart health and inflammation-related conditions.

15. Food Sensitivity Test (209 Foods)

A comprehensive test that evaluates your body’s immune response to over 200 common foods. Best for: People with bloating, digestive issues, migraines, or unexplained fatigue.

16. Lyme Disease Antibodies, Total Immunoglobulins

A Lyme disease test detects antibodies against Borrelia bacteria, which causes Lyme disease. Best for: Individuals with a history of tick bites or Lyme-related symptoms (joint pain, fatigue, rash).

17. Female Fertility Panel Comprehensive

Measures key hormones affecting fertility, including FSH, LH, estrogen, progesterone, and prolactin. Best for: Women planning for pregnancy or experiencing irregular cycles or fertility issues.

18. Testosterone, Free (Direct), Serum with Total Testosterone

A more in-depth testosterone test that measures both free (active) and total testosterone levels. Best for: Men experiencing hormonal imbalances, fatigue, or muscle loss.

19. Allergy: Food Profile-Basic

Screens for common food allergies, detecting immune reactions to certain foods. Best for: Individuals with skin rashes, hives, stomach discomfort, or respiratory symptoms after eating.

20. Celiac Disease Profile Comprehensive - Blood Tests

A celiac panel checks for antibodies related to gluten intolerance and celiac disease. Best for: People experiencing bloating, diarrhea, weight loss, or gluten-related symptoms.

How These Lab Tests Can Improve Your Health

By regularly checking key biomarkers, you can:

✔ Catch health issues early – before they become serious

✔ Monitor chronic conditions – and adjust treatments accordingly

✔ Optimize diet & nutrition – by identifying deficiencies

✔ Ensure sexual health & disease prevention – through routine STD testing

✔ Improve energy, mood, and performance – by balancing hormones and vitamins

Why Choose Test Smartly Labs for Your Lab Testing Needs?

At Test Smartly Labs, we make health testing simple, fast, and convenient:

✔ No Doctor’s Referral Needed – Walk in or schedule an appointment.

✔ Fast & Reliable Results – Most results available within 24–72 hours.

✔ Confidential & Private Testing – Your health information is secure.

✔ Affordable Pricing & Insurance Options – Cost-effective self-pay and insurance billing available.

✔ Comprehensive Health Screenings in One Location – Making it easier to track your health.

📌 Find a Test Smartly Labs location near you and book your lab test today.

Stay Proactive About Your Health – Get Tested Today!

Regular lab testing is one of the most powerful tools for preventing disease, optimizing wellness, and taking control of your health. Whether you need a routine check-up, a diagnostic test, or an in-depth health screening, we are here to help.

📌 Book your lab test now.

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