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 B
Explanation
A. Thoracentesis: Thoracentesis is a procedure to remove fluid from the space between the lungs and the chest wall; it is not a reconstruction.
B. Rhinoplasty: Rhinoplasty is a surgical reconstruction of the nose, often performed for cosmetic or functional reasons.
C. Appendectomy: Appendectomy is the surgical removal of the appendix, not a reconstructive surgery.
D. Colotomy: Colotomy is the surgical incision into the colon, not a reconstructive procedure.
Correct Answer is C
Explanation
A. Exposure to a mosquito bite: Hepatitis B is not transmitted through mosquito bites. It is primarily transmitted through contact with infected body fluids, particularly blood.
B. Consumption of raw shellfish: Hepatitis A, not Hepatitis B, can be contracted through the consumption of contaminated food or water, including raw shellfish.
C. Blood splashes to the mucous membranes: Hepatitis B can be transmitted through exposure to infected blood or body fluids, including splashes to mucous membranes (e.g., eyes, mouth).
D. Direct skin contact with a patient who is infected: Hepatitis B is not transmitted through casual skin contact. It requires contact with infected body fluids.