18 Questions
What is the preferred site for venous blood collection?
Antecubital vein on the forearm
What type of blood collection involves pricking the finger or heel?
Capillary blood collection
Describe the technique for capillary blood collection.
Pricking the skin on the finger or heel to obtain a small quantity of blood.
Why is venous blood preferred over capillary blood for collection?
Venous blood is preferred for its larger volume and lower risk of contamination.
What is the common site for capillary blood collection in infants?
Heel
What is the importance of verifying patient identity before blood collection?
To ensure the correct blood sample is associated with the right patient.
What precaution should be taken when withdrawing the piston to collect venous blood?
Withdraw the piston slowly to avoid frothing.
After collecting the blood sample, what should be done to prevent leakage?
Cap the blood collection tube firmly to prevent leakage.
How should used needles be disposed of after a blood draw?
Destroy the needle in a special needle destroyer device immediately after use. Do not bend, break or recap used needles.
What is the most common reason for collecting an arterial blood sample?
The most common reason for taking blood from the artery is arterial blood gas (ABG) analysis.
When is capillary blood sampling preferred over venous sampling?
Capillary blood is used for infants under 1 year of age and when it is not possible to obtain venous blood.
What should be done with contaminated materials like swabs and syringes after a blood draw?
Place the used swab, syringe and any other contaminated material in a puncture resistant container for adequate disposal.
What are the common sites for drawing capillary blood?
The heel and the ball of the middle finger.
Why is the earlobe no longer recommended for drawing blood?
Reduced blood flow renders it unrepresentative of the circulating blood.
What is a potential risk associated with capillary blood collection?
Capillary blood is free flowing, and thus it causes a greater risk of contamination and disease transmission.
Why is venous blood collection considered more convenient than capillary blood collection?
Venous blood is more convenient for handling and it yields considerably more accurate results.
What is the recommended procedure for collecting capillary blood from an infant's heel?
Bathe the heel in hot water, as it should be very warm, and then perform a deep puncture on the plantar surface of the heel in the specified area.
What are the best locations for performing a finger stick sampling?
The center of the finger pads of the 3rd (middle) and 4th (ring) fingers of the non-dominant hand.
Test your knowledge on the steps involved in collecting blood samples, from withdrawing the piston to capping the receiver tightly. Practice and improve your understanding of blood collection procedures.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
