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Altru's Laboratory is a College of American Pathologists (CAP) accredited, high complexity laboratory. The laboratory serves northeastern North Dakota and northwestern Minnesota, and operates and advises several regional clinic laboratories. We also provide outreach laboratory services to non-Altru health facilities in the region.


The main laboratory is in operation 24 hours a day, 7 days a week, 365 days a year. There are pathologists       on-site with anatomic and clinical pathology board certifications. Laboratory staff includes medical laboratory scientists, medical laboratory technicians, lab assistants, phlebotomists, histotechnologists, and cytotechnologists.


Altru Pathology and Laboratory Services

1200 South Columbia Road

Grand Forks, ND 58201

701.780.5130 /Fax 701.780.1473




Featured Test: Mayo's Chromosomal Microarray test to identify clinically significant chromosomal abnormalities. Chromosomal Microarray (CMA) uses the latest technology to provide expanded genetic testing for a large number of serious genetic disorders not detected by routine chromosome analysis.


When Should I Order CMA?


As A Replacement for Fetal Karyotype: The American Congress of Obstetricians and Gynecologists (ACOG) and the Society for Maternal-Fetal Medicine recommend CMA as a replacement for the fetal karyotype in patients with a pregnancy demonstrating one or more major structural abnormalities on ultrasound when undergoing invasive prenatal diagnosis. (Mayo ID: CMAP)


In Cases of Developmental Delay and Birth Defects: The American College of Medical Genetics recommends CMA as a first-tier, postnatal test for individuals with multiple anomalies that are not specific to well-delineated genetic syndromes, apparently nonsyndromic developmental delay or intellectual disability, or autism spectrum disorders. (Mayo ID: CMACB)


In Cases of Intrauterine Fetal Demise or Stillbirth: ACOG also recommends CMA analysis of fetal tissue (e.g., amniotic fluid, placenta, or products of conception) when further cytogenetic analysis is desired in cases of intrauterine fetal demise or stillbirth. CMA testing increases the likelihood of obtaining results and improves detection causative abnormalities. This testing is also available on both fresh and formalin-fixed paraffin-embedded tissue expanding the clinical situation in which this testing can be used. (Mayo IDs: CMAPC and CMAPT)


Mayo Clinic genetic counselors are available to: support the ordering process; provide additional information about testing options; offer results interpretation; and assist with case review and coordination.