A nurse is caring for a client who has AIDS.
Which of the following solutions should the nurse use to disinfect the client’s overbed table following a blood spill?
A.
Hydrogen peroxide.
B.
Bleach.
C.
Isopropyl alcohol.
D.
Chlorhexidine.
The correct answer and Explanation is:
The correct answer is B. Bleach.
When disinfecting surfaces, especially after blood spills, the use of bleach is recommended. Specifically, a solution containing sodium hypochlorite (bleach) at a concentration of 1:10 (one part bleach to nine parts water) is commonly used in healthcare settings to disinfect surfaces contaminated with blood or other body fluids.
Here’s why bleach is preferred:
- Bleach is a powerful disinfectant: It effectively kills a wide range of pathogens, including viruses, bacteria, fungi, and spores, making it ideal for cleaning surfaces contaminated with blood, especially in environments dealing with infectious diseases such as HIV/AIDS. HIV, the virus that causes AIDS, can be transmitted through blood, so using a potent disinfectant is essential to prevent transmission.
- Sodium hypochlorite breaks down the virus: HIV is an enveloped virus, meaning it has an outer lipid membrane that can be disrupted by bleach, which renders the virus inactive.
- Regulations and guidelines: Both the Centers for Disease Control and Prevention (CDC) and the Occupational Safety and Health Administration (OSHA) recommend the use of a bleach solution for cleaning up blood spills. OSHA specifically suggests using a bleach solution diluted to 1:10 for surfaces contaminated with blood.
Why not the other options?
- Hydrogen peroxide (A) is less effective than bleach for HIV, although it has some disinfectant properties.
- Isopropyl alcohol (C) is also not as potent in killing HIV on surfaces, especially in the presence of organic material like blood.
- Chlorhexidine (D) is mainly used as a skin disinfectant and lacks the broad-spectrum effectiveness of bleach for surface disinfection.
In summary, bleach is the most effective solution for disinfecting surfaces contaminated with blood and reducing the risk of HIV transmission.