Marker chromosomes

Required sample material

heparinised whole blood from lymphocytes
(adults 5-7 ml, children approx. 3-5 ml, newborns 1-2 ml)
NH4 heparinate S monovettes (Sarstedt REF 01.1603) or disposable syringes with approx. 20 to max. 200 µl heparin sodium (5000 I.U./ml) (final concentration 10 to max. 100 I.U. heparin/ml sample material). Please do not send Li heparin or EDTA blood!

from fibroblasts (skin, etc.)
Skin punch with an edge length of approx. 3 mm (reaching to the basement membrane) in sterile physiological saline solution.

Buccal mucosa
only after consultation.

Sample dispatch

The material should be sent uncooled by express mail. The sample transport time is of great importance in cytogenetics, as cell cultures have to be created here. All samples should therefore arrive in our laboratory the day after collection.

Please send the samples to the following address:

Heidelberg University Hospital
Institute of Human Genetics
Laboratory for Cytogenetic Diagnostics
Im Neuenheimer Feld 366
69120 Heidelberg

Sample labelling

Please label each sample container clearly with the surname, first name and date of birth of the patient and use our request forms.

The request forms are structured in such a way that we have all the necessary information about the patient and the patient consent form (where required) for the examination order.

Please complete the request forms carefully to avoid unnecessary enquiries and please understand that we cannot accept unlabelled sample containers.

Please bear in mind that we can only carry out genetic analyses if we have the patient's written consent!

Request form for cytogenetics and FISH diagnostics

Further information

Examination method:
Cytogenetic and molecular cytogenetic analyses

Note:
Chromosomal characterisation of marker chromosomes after consultation by telephone.

Processing time:
4 days to 4 weeks (depending on urgency and sample volume)

Contact persons