Blood Spot Testing
Blood Spot is the future of blood testing and is a convenient form of health and wellness testing. The development and application of blood spot testing allows monitoring of hormone levels, cardiometabolic markers and Vitamin D. The convenient collection of blood from a tiny nick of the finger, allows for flexibility of testing at the right time of day, month or following hormone therapy. Blood Spot testing provides results on par with those from serum tests but without the cost and inconvenience of conventional blood draws, making it beneficial for both patient and practitioner.
New! Simple. Reliable. Easy.
ZRT Laboratory introduces the EZ MediCARE Kit into their product and services family. The EZ MediCARE Kit will meet the needs of Medicare patients who are seeking coverage. All analytes measured are Medicare eligible for coverage which means no out of pocket expenses for Medicare patients.
Best Value
Blood Spot and Saliva Tests are also available in ZRT's Combo Test Kit. Learn MoreHormones and other substances we test in blood spot include:
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Profiles we offer in blood spot include:
- Male Blood Profile I

(E2, T, DS, C, SHBG, & PSA) - Male Blood Profile II
(E2, T, DS, C, SHBG, PSA, TSH, fT3, fT4, & TPO) - Female Blood Profile I
(E2, Pg, T, DS, C & SHBG) - Female Blood Profile II
(E2, Pg, T, DS, C, SHBG, TSH, fT3, fT4, & TPO) - Complete Thyroid Profile
(TSH, fT3, fT4, & TPO) - CardioMetabolic Profile I
(Insulin, hsCRP, HbA1c, TG, CH, LDL, HDL, VLDL)
All of these blood spot profiles are available to Medicare patients when using the EZ MediCARE Kit.
The following table compares which tests are done in saliva and/or blood spot.
| Hormone or Analyte | Saliva | Blood Spot |
| Estradiol (E2) | ||
| Progesterone (Pg) | ||
| Testosterone, free | ||
| Testosterone, total | ||
| DHEA-S (DS) | ||
| Cortisol, AM (C1) | ||
| Cortisol, Diurnal (C1, C2, C3, C4) | ||
| Estriol (E3) | ||
| Estrone (E1) | ||
| Follicle stimulating hormone (FSH) | ||
| Luteinizing Hormone (LH) | ||
| Insulin-like Growth Factor (IGF-1) | ||
| Insulin, fasting | ||
| Triglycerides (TG) | ||
| Hemoglobin A1C (HbA1c) | ||
| High Sensitivity C-Reactive Protein (hs-CRP) | ||
| Total Cholesterol (CH) | ||
| LDL Cholesterol | ||
| HDL Cholesterol | ||
| VLDL Cholesterol | ||
| Prostate specific antigen (PSA) | ||
| Sex hormone binding globulin (SHBG) | ||
| Thyroid peroxidase antibodies (TPO) | ||
| Thyroid stimulating hormone (TSH) | ||
| Triiodothyronine (T3), free | ||
| Thyroxine (T4), free | ||
| 25-hydroxy vitamin D2 | ||
| 25-hydroxy vitamin D3 |
The Science Behind DBS
Want more information? Download our Provider Data Sheet: About Blood Spot Testing (PDF)
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Collecting A Blood Spot
Watch a 3 minute video demonstrating the simplicity of dried blood spot (DBS) collection. |
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