Test Directory

• Patient Duffy Antigen Typing x2

For paternal antigen testing for Maternal Fetal Medicine only.

Testing is by serology

Preferred Specimen Type: Whole Blood

Preferred Collection Container: 1 Pink Top (EDTA)

Alternate Collection Container: 1 Lavender Top (EDTA)

Desired Specimen Volume: 6 mL

Minimum Acceptable Volume: 3 mL

The specimen tube shall be properly labeled with the following 3 independent identifiers for inpatients and outpatients:

1. Patient's full name
2. Date of birth
3. Medical record number

The labels shall also include the following verifiers:

1. Date and time of collection
2. Initials/tech code of phlebotomist

Exception Criteria:

• Trauma -ED patient: Patients with unknown name and date of birth, medical record number and temporary name are acceptable.
• Good Shepherd Rehab: Typenex band ID is used as an additional patient identifier

Non-hospitalized patients: Submit specimen with a completed Blood Bank Requisition (LAB-04) Form. Transfusion and pregnancy history within the last 3 months should be included.

i. Transport to the laboratory at room temperature within 24 hours of collection

ii. Transport to the laboratory refrigerated past 24 hours of collection

• Mislabeled
• Insufficient volume
• Inappropriate specimen type