Question 14

Lateral section of the plantar heel

Capillary collection from a 2-month-old infant should be performed in the lateral section of the plantar heel, as this area is less likely to damage underlying structures and is commonly used for blood collection in infants.

A) Lateral section of the plantar heel

This option is correct because the lateral section of the plantar heel is specifically recommended for capillary blood collection in infants. It minimizes the risk of injury to deeper tissues and nerves, making it a safe and effective choice.

B) Central area of the heel

The central area of the heel is not recommended for capillary collections in infants. This region is closer to the bones and nerves, increasing the risk of complications such as injury or pain during the procedure.

C) Posterior curvature of the heel

Utilizing the posterior curvature of the heel is also inappropriate for capillary collection. This area poses a higher risk for damage to underlying structures, which can lead to complications and is generally not advised for this purpose.

D) Palmer surface of the distal phalanx

The palmer surface of the distal phalanx is not suitable for capillary collections in infants. This area is primarily used for fingersticks in older children and adults but is not appropriate for infants due to the risk of injury and the smaller size of their fingers.

Conclusion

The correct answer, the lateral section of the plantar heel, is the safest and most effective site for capillary blood collection in infants. All other options pose a greater risk of complications, either through proximity to bone and nerve structures or by not adhering to established guidelines for infant venipuncture.