Method for internally coating a liquid test sample collection device with at least one anticoagulant compound, and devices and kits related thereto

A method of using a liquid test sample dispensing device to dispense a patient's liquid test sample into a reaction vessel for conductance of at least one diagnostic assay, the method comprising the steps of:

• (a) preparing a colloidal solution, the colloidal solution comprising at least one anticoagulant compound and at least one insoluble volatile compound, the colloidal solution being contained within a receptacle;
• (b) placing a liquid test sample dispensing device into the receptacle, the liquid test sample dispensing device comprising:
• a body, the body comprising at least one side, a first end, and a second end;
• and
• a capillary portion, the capillary portion comprising a capillary having at least one outer surface, at least one inner surface, a first end, a second end, and an opening located at the second end of the capillary, wherein the first end of the capillary is disposed through the second end of the body, further wherein the capillary is in fluid contact with the colloidal solution such that a volume of the colloidal solution enters into and is retained within the capillary via the opening such that the colloidal solution is in fluid contact with the at least one inner surface of the capillary;
• (c) removing the liquid test sample dispensing device from the receptacle and heating at least the capillary portion of the liquid test sample dispensing device to a temperature wherein the at least one insoluble volatile compound evaporates from the colloidal solution contained within the capillary, and further wherein granules of the at least one anticoagulant compound are deposited on the at least one inner surface of the capillary;
• (d) drawing the patient's liquid test sample into the capillary of the liquid test sample dispensing device, wherein the capillary has the at least one anticoagulant compound's granules deposited on the at least one inner surface of thereof;
• and
• (e) inserting the liquid test sample dispensing device containing the patient's collected liquid test sample into the reaction vessel for conductance of at least one diagnostic assay of the patient's collected liquid test sample.