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Test Code LAB7903 Type and Screen Neonate <4 Months (<120 Days), Blood

Additional Codes

Includes: ABO/Rh Type, Antibody Screen, and Maternal ABO Antibody Screen

Performing Laboratory

St. Louis Children's Hospital - Blood Bank

Specimen Requirements

Patient Preparation: None

Container/Tube  
Preferred: Lavender-top (EDTA) tube
Acceptable: Lavender-top (EDTA) samplette/microtainer
Collection Volume: 

Vacutainer: 2.0 mL (minimum 0.5 mL)
Microtainer: minimum 0.5 mL

Submission Container/Tube: If specimen is coming from outside facility, send whole blood in original collection container.
Special Instructions:

  1. Immediately invert tube gently 8-10 times after collection to ensure proper mixing of blood and anticoagulant (this will avoid specimen clotting). Do not overfill tube. 
  2. Specimen results will be used for compatibility testing for 4 months (120 days) from birth.
  3. Date and Time of collection are required on specimen label.
  4. Specimen must be labeled with either a PPID label, chart or non-computer generated label including patient's name, hospital registration number, and date of birth.
  5. Non-PPID labeled specimens must be signed by person collecting specimen.

Sample Rejection

Mislabeled or unlabeled specimens

Clotted specimens

Hemolyzed specimens

Logistics

Test Availability: Monday-Sunday
Cut-off time: None; performed as received
Turnaround Time: Same day; 1 hour from receipt in performing lab

Reference Values

Reference Interval: Not applicable

Additional Information

FOR SLCH CORE LABORATORY USE ONLY

Lab Processing instructions: DO NOT SPIN. Give specimen directly to Blood Bank
Processed Volume: NA
Analyte Stability:

Specimen Type Temperature Time
Whole Blood (unprocessed)  Ambient NA
  Refrigerated     72 hours
  Frozen  unacceptable       

Test Classification and CPT Code

ABO: 86900

Rh Type: 86901

LOINC

NA

Last Reviewed

07/2025