Investigation Name:Homocysteine Free (Classical Homocystinuria)

Pathology Laboratory:Chemistry Referred Ext 85290

Requestable Seperately?No

Part of Profile:No

E-Requesting Tab:Blood Sciences, Chem 2, Other Blood

Units:umol/L

Minimum Sample Volume:4.5 mL

Expected Turnaround Time:15 working days from receipt

Test Code:15 working days from receipt

Sample Type:

Maximum Add on Time:N/A

Complex Reference Range:Contact IMD section BCH 0121 333 9942

Collection Conditions / Other Information:Fasting sample required PLEASE SHOW REQUESTS FOR HOMOCYSTEINE TO THE DUTY BIOCHEMIST IMMEDIATELY For diagnosis and monitoring of patients with classical homocystinuria only. If requested for premature thrombosis including hypoxic ischaemic encephalopathy see Total Homocysteine (Total) No proven value in management of cardiovascular disease. LAB INSTRUCTIONS: Separate within 30 min then see Prof Gama, Jas or Sue for deproteinising solution. Deproteinise plasma with an equal volume of deproteinising fluid (supplied by BCH), tip off into Z5 and deep freeze. DO NOT SEND SAMPLE OVER A WEEKEND. Does not need to be transported frozen.

Reference Laboratory Details:Biomedical Genetics, Paediatric Laboratory Medicine, B'ham Children's Hospital NHS Trust, Whittal Street,BHAM B4 6DH (Tel.0121 3339999/SD *3155 Chem Lab Ext 9915, Met Lab Ext 9942 )

Referred to Another Laboratory?Yes

Reference Lab Code:CHIC