Test Details
Methodology
Standard G-banded karyotyping and isoelectric focusing of hemoglobin to confirm fetal derivation of the sample
Result Turnaround Time
8 - 13 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Rapid analysis of fetal chromosomes, used most frequently following the determination of fetal amniocyte mosaicism
Special Instructions
Medical indication for procedure and the patient's name and age should be included on the request form.
Specimen Requirements
Specimen
Fetal blood or cord blood
Volume
1 to 3 mL
Minimum Volume
0.5 mL (Note: This volume does not allow for repeat testing.)
0.5 mL |
0.5 mL (Note: This volume does not allow for repeat testing.) |
Container
Green-top (sodium heparin) pediatric tube
Collection Instructions
Using sterile technique, collect blood into a green-top (sodium heparin) tube or syringe. Invert the tube several times to prevent coagulation. Specimens should be sent the same day as collected. Use of improper anticoagulant and/or frozen specimen cannot be processed.
Using sterile technique, collect blood into a green-top (sodium heparin) tube or syringe. Invert the tube several times to prevent coagulation. Specimens should be sent the same day as collected. Use of improper anticoagulant and/or frozen specimen cannot be processed. |
Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Upon receipt, suitability of specimen will be determined by the Cytogenetics laboratory.
|
Upon receipt, suitability of specimen will be determined by the Cytogenetics laboratory. |
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 511025 | Chromosome, Cordocentesis/HbF | 512065 | Specimen Type | 31208-2 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 512067 | Cells Counted | 62361-1 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 512068 | Cells Analyzed | 62360-3 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 512069 | Cells Karyotyped | 55199-4 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 512070 | GTG Band Resolution Achieved | 62358-7 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 512071 | Cytogenetic Result | 29770-5 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 510997 | Interpretation | 62365-2 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 510998 | Director Review: | 48672-0 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 510180 | Fetal Hemoglobin | 28067-7 | ||
| 511025 | Chromosome, Cordocentesis/HbF | 510182 | Fetal Hemoglobin | N/A | ||
| 511025 | Chromosome, Cordocentesis/HbF | 512123 | 11502-2 | |||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 512065 | |||||
| Result Code Name | Specimen Type | |||||
| UofM | ||||||
| Result LOINC | 31208-2 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 512067 | |||||
| Result Code Name | Cells Counted | |||||
| UofM | ||||||
| Result LOINC | 62361-1 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 512068 | |||||
| Result Code Name | Cells Analyzed | |||||
| UofM | ||||||
| Result LOINC | 62360-3 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 512069 | |||||
| Result Code Name | Cells Karyotyped | |||||
| UofM | ||||||
| Result LOINC | 55199-4 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 512070 | |||||
| Result Code Name | GTG Band Resolution Achieved | |||||
| UofM | ||||||
| Result LOINC | 62358-7 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 512071 | |||||
| Result Code Name | Cytogenetic Result | |||||
| UofM | ||||||
| Result LOINC | 29770-5 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 510997 | |||||
| Result Code Name | Interpretation | |||||
| UofM | ||||||
| Result LOINC | 62365-2 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 510998 | |||||
| Result Code Name | Director Review: | |||||
| UofM | ||||||
| Result LOINC | 48672-0 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 510180 | |||||
| Result Code Name | Fetal Hemoglobin | |||||
| UofM | ||||||
| Result LOINC | 28067-7 | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 510182 | |||||
| Result Code Name | Fetal Hemoglobin | |||||
| UofM | ||||||
| Result LOINC | N/A | |||||
| Order Code | 511025 | |||||
| Order Code Name | Chromosome, Cordocentesis/HbF | |||||
| Order Loinc | ||||||
| Result Code | 512123 | |||||
| Result Code Name | ||||||
| UofM | ||||||
| Result LOINC | 11502-2 |