Laboratory Services

Lab Testing for Inpatients & Outpatients

Mercer Health’s comprehensive onsite medical laboratory allows us to get results to you and your healthcare provider quickly. When your provider submits an outpatient order to the lab, you can walk into any of our convenient locations to have your labs drawn. Patients in the hospital requiring labs will have their blood drawn conveniently in their inpatient or treatment room. All results are sent to the ordering provider for review and released directly to patients via Mercer Health MyChart.

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Patient Authorized, Direct Access Testing

Mercer Health offers both Laboratory Tests and Vascular Screenings as part of the Patient Authorized, Direct Access Testing program. The program provides a conve­nient – and often less expensive – opportunity for preventative screenings.

Learn More About Direct Access Testing

Direct Access Tests We Currently Offer:

Direct Access Tests We Currently Offer:

Comprehensive Metabolic Panel

Basic Metabolic Panel

Liver Panel

Kidney Panel

Fasting Lipid Panel

Hemoglobin A1c

Blood Type (ABO/Rh)

Thyroid Profile

TSH Test (Thyroid Stimulating Hormone)

Cholesterol Test

Glucose Test

Potassium Test

Complete Blood Count


Vitamin D Test

Testosterone Test

High-Sensitivity C-Reactive Protein (hs-CRP)

Vascular Screenings

The Advantages of Direct Access Testing

Does not require an order from a provider—they are authorized directly by the patient.

Are often a less expensive option. These tests are self-pay and payment is collected at the time of registration before services are rendered.

Is available on a walk-in basis at any of our laboratory locations. Appointments are not required.

Results are released to the patient via Mercer Health MyChart and by mail and are added to the patient’s medical record, allowing the patient’s provider to review.

Mercer Health's Accreditations:

  • Our Lab sites are accredited by The Joint Commission
  • We also have our Blood Bank accredited by the American Association of Blood Banks (AABB)
  • Our Medical Director is certified by the American Board of Pathologists.

Mercer Health Lab Locations

Mercer County Community Hospital Lab

800 W. Main St.
Coldwater, Ohio 45828

Routine Outpatient Hours:
Monday to Friday: 7 a.m. to 7 p.m., Saturday 7 a.m. to 2 p.m.
Closed Sundays and Holidays

Histology Hours:
Monday to Friday: 7:30 a.m. to 4 p.m.

Clinical Lab:
24 hours a day, 7 days per week

Community Medical Center Lab

950 S. Main St., Celina, Ohio 45822

Monday to Friday: 7 a.m. to 5 p.m.

Medical Group at Celina Pro Lab

801 Pro Dr., Suite A
Celina, Ohio 45822

Monday to Thursday: 7 a.m. to Noon and 1 p.m. to 4:30 p.m.
Friday: 6 a.m. to Noon

Frequently Asked Questions

Who Can Have Testing Done?

Any person, 18 years of age or older, can directly access testing. Parents or legal guardians may request and sign the consent form for patients under 18 years of age.

How Do I Determine If These Test Results Are Normal?

All test results viewed in MyChart will indicate whether they are normal or abnormal. Mailed results include an accompanying “normal range” printed on the report. Normal ranges can vary based on the age and sex of the person being tested. You should compare your results to the normal range shown in your report. If you have questions or concerns, you should discuss your results with your primary care provider.

What Should I Do With My Results?

Whether your test results are sent to a local physician or to one that is out of the area, we provide accurate information to assist them in the determination of your overall health, in the diagnosis of disease, and in setting and monitoring a treatment plan that is best for you.

Partnership with Community Blood Center

Mercer Health utilizes nearly 700 units of blood on an annual basis for patients requiring transfusions to replace blood loss from surgical procedures, accidents or treatments for certain diagnoses.  Mercer Health thanks the community for continuing to support local blood drives and is pleased to announce a new partnership with Community Blood Center (CBC), a regional blood bank providing blood products to 30 partner hospitals and health centers in western Ohio and eastern Indiana.

Mercer Health’s Blood Bank, located within Mercer County Community Hospital, will be solely supplied by blood collected at Community Blood Center blood drives. Mindy Kremer, VP of Development, Marketing and Community Relations at Mercer Health states, “Our community has a history of being generous blood donors. We encourage donors to consider giving at local blood drives sponsored by Community Blood Center as this will ensure our inventory stays replenished as Community Blood Center is the sole blood supplier for Mercer Health.”

Donate Blood + Save a Life

The partnership includes a new schedule of monthly community blood drives at Mercer Health’s Mercer County Community Hospital and a rotation of community blood drives every two months at Mercer Health’s Community Medical Center in Celina.  CBC blood drives at Mercer Health will be held every third Tuesday of the month from 12 p.m. to 6 p.m.

Donors can make an appointment to donate at, call (937) 461-3220 or use the Donor Time app. For more information about Community Blood Center visit

Upcoming blood drives at Mercer County Community Hospital are scheduled for:

Tuesday, March 21, 2023

Tuesday, April 18, 2023

Tuesday, May 16, 2023

Tuesday, June 20, 2023

Tuesday, July 18, 2023

A donor coach from the CBC will be at the Community Medical Center from 2 to 6 p.m. on the following days:

Thursday, April 27, 2023

Tuesday, June 27, 2023

Tuesday, August 29, 2023

Monday, October 30, 2023