How many times should an EDTA tube be inverted after blood collection?

Choice A Reason:
Explaining the procedure to both the parent and the child is crucial. It helps in preparing the child psychologically and ensures that the parent is informed and can provide support during the process. Clear communication can reduce anxiety and make the child more cooperative. It is also a part of informed consent, where the parent understands what the procedure entails and why it is necessary¹².

Choice B Reason:
Choosing not to tell the child when the needle insertion is coming might seem like a way to avoid causing them anticipatory anxiety. However, this approach can lead to mistrust. Children need to be prepared for what to expect, and surprising them can be more traumatic in the long run. It is better to be honest and use age-appropriate language to describe the sensation as a 'quick pinch' or 'poke'¹².

Choice C Reason:
Obtaining a heel stick is a common method for blood collection in infants, particularly newborns, as their veins are not as developed. However, for preschoolers, venipuncture is usually the preferred method because they have more developed veins, and it allows for a larger volume of blood to be collected if needed³.

Choice D Reason:
Obtaining a thumb stick is not a standard practice for blood collection in preschoolers. The thumb has bones and tendons close to the surface, which can increase the risk of injury. The preferred sites are the antecubital fossa of the arm or the back of the hand where the veins are more accessible and there is less risk of hitting bone³.

Choice A Reason:

The median cubital vein is often the first choice for venipuncture due to its size and accessibility. It is located in the antecubital fossa and is usually well anchored by surrounding tissues, which makes it less likely to roll during needle insertion. This vein is also less painful for patients when punctured due to its location and the type of surrounding tissue.

Choice B Reason:

The basilic vein is another option for venipuncture, but it is not typically the first choice. It is located on the medial aspect (inner side) of the arm and is more prone to rolling and injury because it is not as well anchored as the median cubital vein. Additionally, the basilic vein is located near nerves and arteries, which increases the risk of complications during venipuncture.

Choice C Reason:

The cephalic vein runs along the lateral aspect (outer side) of the arm and can be used for venipuncture. However, it is often more difficult to locate and has a tendency to roll, which can make venipuncture more challenging. It is usually considered after the median cubital vein.

Choice D Reason:

Veins on the underside of the wrist should generally be avoided for routine venipuncture because they are often smaller, can be more painful due to the proximity to nerves and tendons, and have a higher risk of complications. These veins are considered only when other sites are not available or are unsuitable for venipuncture.