Pathology Handbook

Recent changes for ADAMTS-13 Activity
Date	Field	Changed From	Changed To
24th June 2025	Assay name	ADAMTS-13 Activity	DOAC STOP LUPUS
	Alternative names		LUPUS DOAC STOP
	Request Group	ADAMTS13	MISC-C
	Volume (Adults)		3 mL
	Minimum/Paediatric Volume		1 mL
	Preferred Specimen Type	Plasma	Blood
	Collection & Request Instructions	Add exactly 2.7 mL of blood & mix by inversion.	Add exactly 2.7 mL of blood & mix by inversion. Two (2x) collection tubes required
	Collection & Request Instructions	This form must accompany the standard pathology request form/referral letter and specimen for all ADAMTS-13 requests. https://monashpathology.org/wp-content/uploads/2024/09/FOR-HE-147.pdf	transport at room temp
	Frequency		Weekly

Laboratory:

Haematology

Test Code:

ADAMTS13

Specimen Types:

Plasma

Container Types:

Sodium Citrate

Collection & Request Instructions:

Add exactly 2.7 mL of blood & mix by inversion.

This form must accompany the standard pathology request form/referral letter and specimen for all ADAMTS-13 requests.

Transport Instructions between Sites and/or Laboratories:

Send to lab immediately

Send on dry ice

External Laboratory:

Monash Pathology

Additional Notes:

FBE often have the urgent STICKER attached and this does NOT mean the ADAMTS-13 IS URGENT - CHECK WITH HAEMATOLOGIST/ REGISTRARS re Urgency.