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Laboratory Medicine

Test catalogue

Neonatal Alloimmune Thrombocytopenia, Neonatal (NAIT)

Test Name

Neonatal Alloimmune Thrombocytopenia, Neonatal (NAIT)

Lavender Tube Microtainer Tube Specimen Type / Requirements

Container Type = 1 Microtainer tube (EDTA)

Minimum Venous Volume = 1 x 1 mL Microtainer tube (EDTA)

Specimen Handling

Collection Instructions: Collect sample a pink top tube for neonatal patients. To avoid platelet clumping, samples should be well mixed at time of collection. Maternal specimen must be collected, paternal specimen may also be collected if available. Medical Director / High Risk OB Physician approval is required. Requisition must have ordering physician, phlebotomist signature, collection date and time.Specimen must be clearly labeled with patient information. Maternal and Paternal specimens MUST be collected. Medical Director approval is required.

Maternal and Paternal specimens MUST be collected.

Stability: Stable at room temperature for 2 hrs.

Transportation: Send to Transfusion Medicine lab at room temperature as soon as possible. Must be delivered to TM by 12:00, Moday - Thursday only

Sample Rejection Criteria: Grossly hemolytic, icteric or lipemic specimens. Unlabeled and/or mislabeled specimens. Incomplete TM and/or NAIT requisition.

Required Documentation

Ensure both requisitions are completed with ordering physician name and phlebotomist signature, date and time of draw.

CBS - Platelet Immunology Requisition required per patient specimen

Turnaround Time (TAT)

3 business days

Test Utilization


Reference Value

See Interpretive Report

Test Code




Testing Location

Referred Out – MB, Canada (ROCBSW39)

Other Information

Last Updated: June 06, 2019