Blood Collection: Methods, Procedures, Precautions To Be Taken

29th December 2021

Blood is the most covered fluid in our body. It forms our body; therefore, blood loss is a serious issue that might lead to a person's death. There are various ways and procedures for Blood collection, and rules and procedures must be followed correctly, which makes it difficult for a person to survive who gave blood. While taking blood, one must do all the necessary precautions so that there will not be any pollutants in the blood or air in the body of the person.

Methods of blood collection

The method is the types of collecting the blood, and mainly there are three types.

  1. Arterial sampling: this kind of collection occurs within the hospital environment, and it is highly painful for the patient. It also has some the side effects like the entry of bacteria inside the patient body.
  2. Venipuncture sampling: sampling or blood is taken from the veins present in the upper limb, and it is a common way to collect blood from adults. This is less painful than the other type.
  3. Fingerstick sampling: this involves taking blood out from the ring's fingertip. It is taken during observation of blood. It is not at all painful. Best and easy way to collect the sample.

Procedure involved

The blood collection procedure is quite complicated, and three different methods have different procedures.

  • Arterial sampling is taking blood from an artery, and one should use a needle to locate the place and then take out blood using a syringe; remember to remove all the air from the syringe before taking blood and then collect it in a sampling tube.
  • Venipuncture sampling takes the belt and puts it above the upper limb. Identify the nerve and remove blood from there. After removing blood, collect it in a sample box.
  • Fingerstick sampling where you have to take a small piercing pin used to pierce the skin and remove blood in cotton. After that second time, gently press the fingertip and take the blood in a sampling tube.

Safety precautions

This is the procedure involved, but some safety precautions should be taken.

  • Wash your hands in warm water before you touch the patient.
  • Wear hand gloves so that there will not be direct contact.
  • Ask your patient for their details and write them in the tube where their sample will be collected to avoid confusion.
  • Ask your patient about their diet they had recently. Don't collect blood samples if they are fasting or if they didn't have their diet.
  • Ensure that you remove a little amount of blood only.
  • Point the needle in a specific place and take out blood.
  • After collecting, remember to keep samples correctly without causing any harm to them because of outside pollution.

Blood collection is not easy, and not everyone can collect it. Lab technicians should collect it with caution, and after collection, one should not mix, and they should not create confusion. One should take the blood sample based on the method they want, and following the method will depend on the type of sample they need.

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