53. A phlebotomist is preparing to collect a capillary blood specimen from a patient using the aseptic technique. Which of the following cleansing agents should the phlebotomist use?
Answer: C
The phlebotomist should use 70% isopropyl alcohol as the cleansing agent.
Using 70% isopropyl alcohol is the most effective method for cleansing the skin prior to collecting a capillary blood specimen, as it provides adequate antiseptic properties while being safe for the skin.
A) Povidone-iodine
Povidone-iodine is typically used for preparing the skin for venipuncture or surgical procedures rather than capillary blood collection. While it is an effective antiseptic, it may leave a residue that can interfere with certain tests, making it less suitable in this context.
B) Hand sanitizer
Hand sanitizer is designed primarily for hand hygiene rather than skin antisepsis prior to blood collection. It may not provide the same level of cleansing as isopropyl alcohol and could leave a film that might contaminate the specimen.
C) 70% isopropyl alcohol
70% isopropyl alcohol is widely recognized as an effective antiseptic for skin cleansing before blood collection. It effectively reduces the presence of bacteria and other pathogens on the skin surface, making it the preferred choice for capillary blood specimen collection.
D) 10% chlorine bleach solution
A 10% chlorine bleach solution is not appropriate for skin preparation prior to blood collection. It is a strong disinfectant that can cause skin irritation and is not suitable for use on human skin, potentially leading to adverse reactions.
Conclusion
70% isopropyl alcohol is the optimal choice for cleansing the skin before capillary blood collection due to its efficacy in reducing microbial presence without leaving harmful residues. Other options either do not provide adequate antiseptic properties, may irritate the skin, or are inappropriate for this specific procedure, confirming that C is the correct answer.