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HelpTest Code Apt Test Gastric APT Test, Fetal Hemoglobin, Gastric
Additional Codes
LAB9785
Performing Laboratory
St. Louis Children's Hospital
Last Reviewed
November 2024
Lab Dept
Core Lab
Specimen Requirements
Specimen Type: BLOODY emesis (vomit) or aspirate
Container/Tube:
Preferred: Plastic, screw-capped container
Acceptable: soiled bedding
Collection Volume: 1.0 mL
If specimen has soaked into bedding, send article that specimen has soaked into.
Patient Preparation: None
Sample Rejection: Mislabeled or unlabeled specimens.
Special Instructions:
Specimen must be grossly bloody (either pink or red).
Send specimen to lab promptly.
Logistics
Day(s) Test Set Up: Monday-Sunday
Cut-off time: None; performed as received
Turnaround Time: Same day; 2 hours from receipt in lab
Lab Testing Section: Hematology
Interpretive
Reference Range: Negative (Indicates maternal blood was swallowed).
Critical Values: None established
Limitations: NA
Methodology: Dye
General Information
EPIC order name: APT Test Gastric (EPIC Test # LAB9785)
Cerner order name: Apt Test Gastric
CPT Codes: 83033
LOINC Value: NA
Synonyms:
Additional Information
For SLCH Laboratory use only
Lab Processing instructions: DO NOT SPIN. Give all specimen to the technologist on Coag/UA bench.
Processed Volume: 1.0 mL
Analyte Stability:
Ambient: NA
Refrigerated: NA
Frozen: Unacceptable
NOTES: Medical Director approval required for specimens received on patients >1 week old.