Difficulty: Hard

Average Score: 43%

Which of the following areas should a phlebotomist use for a capillary collection from a 2-month-old infant?

Rationale

Lateral section of the plantar heel is the appropriate area for capillary collection in a 2-month-old infant.

The lateral section of the plantar heel is the recommended site for capillary blood collection in infants due to its accessibility and minimal risk of injury to underlying structures. This site is specifically chosen to ensure both safety and efficacy during blood draws in young patients.

A (Lateral section of the plantar heel) CORRECT

This area is preferred for capillary collection because it is away from major nerves and blood vessels, reducing the risk of complications. Additionally, the skin in this region is usually thin and vascularized, facilitating a successful blood draw while minimizing discomfort for the infant.

B (Central area of the heel) YOUR ANSWER

The central area of the heel is not recommended for capillary collection as it is located closer to important structures, including nerves and larger blood vessels. This increases the risk of complications such as pain, bruising, or injury, making it a less desirable site for blood collection in infants.

C (Posterior curvature of the heel) YOUR ANSWER

Collecting blood from the posterior curvature of the heel poses significant risks, as this region is also close to the Achilles tendon and other sensitive anatomical structures. This can lead to discomfort and potential injury, making it an unsafe option for capillary blood collection in young children.

D (Palmer surface of the distal phalanx) YOUR ANSWER

Although the palmer surface of the distal phalanx can be used for capillary collection, it is generally not preferred for infants due to the increased risk of injury and the potential for more significant discomfort. Additionally, it is less commonly used compared to the lateral heel, which is specifically designed for this purpose.

Conclusion

For capillary blood collection in a 2-month-old infant, the lateral section of the plantar heel is the optimal choice due to its safety and accessibility. Other areas, such as the central heel, posterior curvature, and palmer surfaces, pose increased risks and complications, making them unsuitable for this procedure. Adhering to recommended sites ensures the health and comfort of the infant during blood draws.

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