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HelpTest Code LAB9785 APT Test, Fetal Hemoglobin, Gastric
Additional Codes
LAB9785
Performing Laboratory
St. Louis Children's Hospital - Hematology
Methodology
Dye
Reference Values
Reference Range: Negative (Indicates maternal blood was swallowed).
Critical Values: None established
Last Reviewed
07/2024
Sample Rejection
mislabeled or unlabeled specimen received
Specimen Requirements
Specimen Type: BLOODY emesis (vomit) or aspirate
Patient Preparation: None
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.
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 performing lab
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:
| Specimen Type | Temperature | Time |
|---|---|---|
| Bloody emisis (unprocessed) | Ambient | NA |
| Refrigerated | NA | |
| Frozen | Unacceptable |
NOTES: Medical Director approval required for specimens received on patients >1 week old.
Limitations
- NA
Test Classification and CPT Coding
83033
LOINC
in process