TEST CATALOG ORDERING & RESULTS SPECIMEN HANDLING CUSTOMER SERVICE EDUCATION & INSIGHTS
Test Catalog

Test ID: LDALD    
Lysosomal and Peroxisomal Disorders Newborn Screen, Blood Spot

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Specimen Type Describes the specimen type validated for testing

Whole blood

Advisory Information

Testing performed in the context of newborn screening only. For diagnostic testing, or at a clinical biochemical geneticist's discretion, testing may be changed to PLSD / Lysosomal and Peroxisomal Storage Disorders Screen, Blood Spot.

Necessary Information

Birth weight, time of birth, and gestational age are required.

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Patient must be older than 24 hours and less than 1 week of age.

 

Supplies: Card-Blood Spot Collection (Filter Paper) (T493)

Container/Tube:

Preferred: Card-Blood Spot Collection (Filter Paper)

Acceptable: Ahlstrom 226 filter paper, Munktell filter paper, Whatman Protein Saver 903 Paper, or blood collected in tubes containing ACD, EDTA, or heparin and then spotted and dried on filter paper

Specimen Volume: 2 blood spots

Collection Instructions:

1. Completely fill at least 2 circles on the filter paper card (approximately 100 microliters blood per circle).

2. Let blood dry on the filter paper at ambient temperature in a horizontal position for a minimum of 3 hours.

3. Do not expose specimen to heat or direct sunlight.

4. Do not stack wet specimens.

5. Keep specimen dry.

Additional Information:

1. For collection instructions, see Blood Spot Collection Instructions in Special Instructions.

2. For collection instructions in Spanish, see Blood Spot Collection Card-Spanish Instructions (T777) in Special Instructions.

3. For collection instructions in Chinese, see Blood Spot Collection Card-Chinese Instructions (T800) in Special Instructions.

Special Instructions Library of PDFs including pertinent information and forms related to the test

Forms

1. Biochemical Genetics Patient Information (T602) in Special Instructions.

2. If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

-General Request (T239)

-Inborn Errors of Metabolism Test Request (T798)

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

Blood spot: 1

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Shows serum rings; Insufficient specimen Reject

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTimeSpecial Container
Whole bloodRefrigerated (preferred)56 daysFILTER PAPER
 Frozen 56 daysFILTER PAPER
 Ambient 7 daysFILTER PAPER