Blood Collection Apparatus

A blood collection apparatus comprising:

• a test tube element comprising a vacuum facilitating an extraction of blood from a patient, and further comprising a test tube septum;
• a heat transfer element encapsulating the test tube element and storing at least two reagents capable of initiating a chemical reaction contemporaneously with the extraction of the blood from the patient, the chemical reaction exchanging heat with the blood, the heat transfer element further comprising a fracturable element that when fractured enables the at least two reagents to initiate the chemical reaction;
• and
• an insulation element encapsulating the heat transfer element, the insulation element inhibiting a loss of a temperature change of the blood resulting from the chemical reaction initiated by the at least two reagents, wherein the insulation element does not interfere with a fracturing of the fracturable element, wherein the blood collection apparatus further comprises a circumference suitable to be mated with a general purpose test tube needle holder.