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26014 Parental Prenatal Array Prep Test (PPAP)

Parental Prenatal Array Prep Test (PPAP)
Test Code: PPAPSO
Useful For
​Preparing parental blood samples for possible confirmation testing if an abnormality is detected on the prenatal array sample.
 
DNA extraction of the maternal blood sample used for maternal cell contamination testing.
 
This test can only be ordered on the parents when a prenatal microarray test has been ordered on the fetal sample.
This test code contains no charge and serves as a way to correlate proband and parental specimens. If additional testing is warranted, the appropriate tests will be added. 
 
When prenatal microarray analysis is ordered, parental blood samples are collected and prepared for confirmation studies should an abnormality be detected on the prenatal sample. If an abnormality is detected on the fetal sample, the most appropriate testing (microarray, FISH, or chromosome analysis) to aid in the interpretation of the prenatal result is performed on the parental samples. A paternal blood sample is desired but not required.
 
Maternal cell contamination testing will be performed on the maternal blood and prenatal samples to rule out the presence of maternal cells in the fetal sample.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​ ​Whole Blood ​Green Top Tube Sodium Heparin (GTT) AND EDTA Lavendar Top Tube (LTT)

​GTT-4 mL

LTT-3 mL

Collection Processing Instructions

This test requires 2 blood specimens: 1 sodium heparin and 1 EDTA.

1. Invert several times to mix blood.
2. Send specimens in original tubes.

Necessary Information:

1. The reason for referral is required.

2. Include the name listed on the prenatal sample that was submitted for prenatal microarray analysis.

Specimen Stability Information
Specimen Type Temperature​Time
​Whole Blood ​ ​Ambient (preferred)​10 days
​Refrigerate​10 days
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Mayo Clinic Laboratories ​Monday through Sunday ​Varies DNA Extraction/ Cell Culture
Reference Lab
Reference Range Information
Inrterpretive Report
Ordering Applications
Ordering Application Description
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​ ​Whole Blood ​Green Top Tube Sodium Heparin (GTT) AND EDTA Lavendar Top Tube (LTT)

​GTT-4 mL

LTT-3 mL

Collection Processing

This test requires 2 blood specimens: 1 sodium heparin and 1 EDTA.

1. Invert several times to mix blood.
2. Send specimens in original tubes.

Necessary Information:

1. The reason for referral is required.

2. Include the name listed on the prenatal sample that was submitted for prenatal microarray analysis.

Specimen Stability Information
Specimen Type Temperature​Time
​Whole Blood ​ ​Ambient (preferred)​10 days
​Refrigerate​10 days
Useful For
​Preparing parental blood samples for possible confirmation testing if an abnormality is detected on the prenatal array sample.
 
DNA extraction of the maternal blood sample used for maternal cell contamination testing.
 
This test can only be ordered on the parents when a prenatal microarray test has been ordered on the fetal sample.
This test code contains no charge and serves as a way to correlate proband and parental specimens. If additional testing is warranted, the appropriate tests will be added. 
 
When prenatal microarray analysis is ordered, parental blood samples are collected and prepared for confirmation studies should an abnormality be detected on the prenatal sample. If an abnormality is detected on the fetal sample, the most appropriate testing (microarray, FISH, or chromosome analysis) to aid in the interpretation of the prenatal result is performed on the parental samples. A paternal blood sample is desired but not required.
 
Maternal cell contamination testing will be performed on the maternal blood and prenatal samples to rule out the presence of maternal cells in the fetal sample.
Reference Range Information
Inrterpretive Report
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Mayo Clinic Laboratories ​Monday through Sunday ​Varies DNA Extraction/ Cell Culture
Reference Lab
For billing questions, see Contacts
For most current information refer to the Marshfield Laboratory online reference manual.