In which of the following situations is it appropriate for a medical assistant to use hand sanitizer as a means of aseptic technique?
When cleaning instruments for sterilization
When assisting with a minor office surgery
When hands are not visibly soiled
When transferring urine to a collection tube
The Correct Answer is C
A. When cleaning instruments for sterilization: Hand sanitizer is not appropriate for cleaning or sterilizing instruments; proper cleaning and sterilization procedures must be followed.
B. When assisting with a minor office surgery: Hand sanitizer is not recommended for procedures requiring sterile technique; hand washing with soap and water is preferred.
C. When hands are not visibly soiled: Hand sanitizer can be used effectively when hands are not visibly dirty, as it helps reduce microbial load.
D. When transferring urine to a collection tube: Hand sanitizer is not suitable for this task; thorough hand washing is necessary to prevent contamination.
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Correct Answer is C
Explanation
A. Glutaraldehyde: Glutaraldehyde is used for high-level disinfection of medical equipment, not for cleaning blood spills.
B. Isopropyl alcohol: While isopropyl alcohol is used for disinfection, it is not the preferred choice for blood spills due to its lower efficacy against certain pathogens.
C. Bleach: A bleach solution is effective for disinfecting surfaces contaminated with blood, as it is effective against a broad range of pathogens, including bloodborne viruses.
D. Iodine compounds: Iodine is used for antiseptic purposes on skin but is not ideal for disinfecting blood spills on surfaces.
Correct Answer is C
Explanation
A. Chlamydia pneumoniae: While Chlamydia pneumoniae can cause respiratory infections, it is not typically associated with large-scale epidemics.
B. Clostridium difficile: Clostridium difficile causes antibiotic-associated diarrhea and colitis, but it is not commonly associated with epidemics.
C. Influenza type A: Influenza type A is known for causing seasonal epidemics and pandemics due to its ability to mutate rapidly and spread easily.
D. Mycobacterium tuberculosis: Mycobacterium tuberculosis causes tuberculosis, which is a concern for outbreaks but not typically associated with widespread epidemics like influenza.