Test Catalog

Test ID: HOLDC    
Hematologic Disorders, Chromosome Hold, Varies

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

Holding the bone marrow or peripheral blood specimen in the laboratory but delaying chromosome analysis while preliminary morphologic assessment is in process

Reflex Tests Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial tests.

Test IDReporting NameAvailable SeparatelyAlways Performed
CHRBMChromosomes, Hematologic, BMYesNo
CHRHBChromosomes, Hematologic, BloodYesNo

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

This test is designed to hold the specimen but delay chromosome preparation and analysis while preliminary morphologic assessment is in process.


Upon specimen receipt, the specimen will be held in the laboratory. Chromosome analysis will be performed unless the test is canceled (see Hold policy).


If the client notifies the laboratory that chromosome analysis is not necessary, this test will be reported as "canceled." Chromosome analysis will not be performed but a processing fee will be charged.


If the client does not notify the laboratory that chromosome analysis is not needed (see Hold policy), this test will be reported as "reflexed" and chromosome analysis will be performed. Depending on the specimen received, the appropriate reflex test will be performed. No processing fee will be assessed for this test as culture charges are included in the reflexed test.


Hold policy: The client must contact the Cytogenetics Laboratory at 800-533-1710 by 4 p.m. (central time) no later than 2 business days after the specimen was collected to notify the lab not to proceed with chromosome analysis. If no notification is received by this time, chromosome analysis will be performed and charged. Weekend communication can be deferred until Monday.

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

Direct Preparation of Specimen

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


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Heme Chromosome Hold, B/BM

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

Bone marrow cell culture
Peripheral blood cell culture