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Laboratory Services

Altru's Laboratory provides physicians with concrete data to help determine a patient's diagnosis by testing personal specimens including blood and blood products, bodily fluids and tissue.

Nearly 9,000 specimens are collected from the hospital each month, and approximately 6,300 are collected from other Altru locations. With technology, Altru's lab achieves greater efficiency, prompt resulting and improved patient care.

Laboratory Test Catalog

What We Offer

Hematology is the counting and differentiation of cell types within the body and body fluids. Hematology tests can help diagnose anemia, leukemia, mononucleosis, and indicate viral or bacterial infection.

Coagulation is the process that determines how well blood clots.

Urine specimens may be tested for several chemical components, such as glucose (sugar), cellular (red and white blood cells) or bacteria. This information is utilized by the physician to check for kidney, liver or urinary tract infections, or even pregnancy.

Chemistry tests are used to check for problems with many organ systems in the body. Prescribed medications are monitored and regulated by testing the drug levels in the blood, and the use of illicit drugs can be determined with these tests by checking the blood or urine.

Transfusion Services process and provide blood and blood products for patients. The Dak-Minn Blood Bank, located in Altru Hospital, is our main supplier of blood products. Altru's Transfusion Services is responsible for ensuring the patients being treated at Altru Health System have an adequate and safe blood supply.

Microbiology tests determine bacteria, viruses, specific antigens and antibodies for certain diseases in a specimen. The microbiology laboratory tests several antibiotics to help the physician and pharmacist determine the best and least expensive way to treat the patient, and ultimately stop the infection.

In Histology, a pathologist examines and diagnoses the patient, based on the tissue sample. Approximately 13,500 surgical pathology cases are processed annually in our service area.

Cytology is "the study of cells." A cytotechnologist examines human cell samples and works with a pathologist to arrive at a final diagnosis.

Altru's Laboratory Locations


Crookston | 400 South Minnesota Street | 218.281.9100 | M-F 7:45 a.m. - 5 p.m.
East Grand Forks | 607 DeMers Ave. | 218.773.0357 | M-F 7 a.m. - 5 p.m.
Erskine | 23076 347th Street SE | 218.687.5317 | M-F 8 a.m. - 4:30 p.m.
Fertile | Mill Street and Main | 218.945.6064 | M-Th 8 a.m. - 4:30 p.m.
Greenbush | 19120 200th Street | 218.782.2400 | Call for appointment
Roseau | 711 Delmore Drive | 218.463.1365 | Call for appointment
Thief River Falls | 1845 Hwy 59 South | 218.681.7280 | M-W 8 - 10 a.m.
Warroad | 412 North Main Avenue | 218.386.2020 | Call for appointment

North Dakota

Devils Lake | 1001 7th Street | 701.662.2157 | M-F 7:30 a.m. - 5 p.m.
Drayton | 1003 N Main Street | 701.454.3311 | M-Th 8:30 a.m. - 5 p.m., F 8:30 a.m. - 12 p.m.
Grand Forks | Altru 1300 Columbia | 1300 Columbia Road | Closed Until Further Notice
Grand Forks | Altru Cancer Center | 960 S. Columbia Road | M-F 7:30 a.m. - 5 p.m.
Grand Forks | Altru Family Medicine Center | 1380 South Columbia Road | 701.795.2235 | M-F 8 a.m. - 5 p.m.
Grand Forks | Altru Family Medicine Residency | 725 Hamline Street | 701.780.6804 | M-F 8 a.m. - 5 p.m.
Grand Forks | Altru Professional Center | 4440 South Washington Street | 701.732.7560 | M-F 7:30 a.m. - 7 p.m.

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