Mobile Site ›

Test Catalog

Test ID: FBP1    
15q Deletion, Type I and Type II Characterization, Prader-Willi/Angelman Syndromes, FISH

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Useful For Suggests clinical disorders or settings where the test may be helpful

Differentiating between type I and type II deletions in Prader-Willi syndrome and Angelman syndrome patients, as follow-up testing after a SNRPN or D15S10 deletion has been detected by FISH analysis or in patients with a +dic(15) chromosome lacking the SNRPN or D15S10 loci (see DUP15 / 15q11.2 Duplication, FISH)


Mapping duplications in patients who carry a +dic(15) marker chromosome

Genetics Test Information Provides information that may help with selection of the correct test or proper submission of the test request

Only appropriate to better define the extent of a 15q11.2 deletion originally detected by PWDNA / Prader-Willi/Angelman Syndrome, Molecular Analysis.

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

See Prader-Willi and Angelman Syndromes: Laboratory Approach to Diagnosis in Special Instructions.

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test

Method Name A short description of the method used to perform the test

Fluorescence In Situ Hybridization (FISH)

Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

15q Del, Characteriz Reflex, FISH

Aliases Lists additional common names for a test, as an aid in searching

Angelman syndrome
Angelman syndrome by FISH
Prader-Willi syndrome
Prader-Willi syndrome by FISH