Mendelian Susceptibility to Mycobacterial Disease (MSMD)

Specimen Container	10 mL Sodium Heparin Tube (To be obtained from DPLM Client Services)
Specimen Requirement	Whole blood Age up to 2 years old: 5 mL Age 2 years old and above: 15 mL Between 8.00 am to 9.00 am on Monday to Wednesday only, collect: 1) 5 mL or 15 mL of fresh blood from patient and 2) 15 mL of fresh blood from a healthy adult to be used as a control * Specimen is not to be collected on Thursday to Sunday, eve of public holidays and public holidays. * Specimen is not to be collected if a PH falls within Wednesday to Friday due to test setup. Contact NUH Paediatric Allergy and Immunology Laboratory at 6601 3306 to make an appointment.
Specimen Storage/Transport	Keep specimen at room temperature. DO NOT send on ice or refrigerant. Despatch to KKH DPLM Client Services as soon as possible as blood must reach NUH Paediatric Allergy & Immunology Lab by 12 noon.
Orderable as Urgent?	No
Turn Around Time	7 - 10 days
Testing Laboratory Location	NUH
Laboratory	Paediatric Allergy & Immunology
Contact Number	6394 1352
Day and Time Performed	Monday to Wednesday, between 8 to 9 am, except for Public Holidays and eves of Public Holiday.
Orderable on CPOE?	No
Downtime Form	Clinical Chemistry - Form A
Additional Information	To call DPLM Client Services at extension 1352 for arrangements prior to blood collection.

Last Updated - 27 May 2025