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Blood test Montreal

Blood sampling definition

Blood sampling is a method consisting in taking a certain amount of blood from a person, called patient, for that blood sample to be analyzed by a medical laboratory. The results issued by this one will enable the physician that will have prescribed the blood sampling to draw conclusions on the patient’s health condition.

Blood sampling needs to be performed by a registered nurse and also by a duly certified and authorized ancillary nurse or laboratory technician, in pursuance of the ethics code drawn up by their respective professional order.

In certain cases the very physician could happen to take blood from his/her patient.

Blood sampling performance

The patients that need this kind of intervention may go to the hospital, more precisely to the sampling center attached thereto, to a private medical laboratory or they may address themselves to a company specialized in blood sampling at one’s residence, which works with a duly acknowledged and certified private medical laboratory.

The enrollment procedure supposes the following steps : to get informed on the ‘empty stomach’ condition that must be prior to the sampling procedure, to go to the reception desk and to hand one’s medical prescription to the nurse or to the laboratory technician (which is mandatory for blood test sampling and other actions), to make oneself an appointment or to wait for one’s turn.

The health professional can then proceed to blood sampling by using various testing tubes, while observing their corresponding priorities. The blood taken from the veins passes through a needle connected to a barrel, then it goes into the testing tube(s).

The collected blood is put into several tubes, each containing its own additive, whose role is to strengthen or to facilitate the properties of an acting substance – in our case the blood.

The best places for making venipunctures

First of all, the registered nurse has to choose the right or the left arm and to check the vein that seems to be the most appropriate for blood taking.

The veins located in the forearm

  • The cephalic vein
  • The basilic vein
  • The median cubital vein

The superficial veins located on the top of the hand

  • The cephalic vein
  • The basilic vein