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 A
Explanation
A. Near visual acuity: Hyperopia, or farsightedness, affects the ability to see objects up close. Testing near visual acuity assesses how well a patient can see objects at a close range.
B. Ishihara: The Ishihara test is used for detecting color vision deficiencies, not hyperopia.
C. Snellen chart: The Snellen chart tests distance vision and is more useful for assessing nearsightedness (myopia) rather than farsightedness (hyperopia).
D. Tonometry: Tonometry measures intraocular pressure to assess for glaucoma, not hyperopia.
Correct Answer is A
Explanation
A. Ensure the skin is clean and dry. This is the correct action. Sweating can interfere with electrode adhesion and signal quality, so the skin should be cleaned and dried to ensure a good contact for accurate EKG readings.
B. Apply conductive gel to the patient's chest. Conductive gel is typically used with certain types of electrodes, but in the case of disposable adhesive EKG electrodes, it is not necessary and may not improve tracing quality.
C. Shave the electrode sites. Shaving may be necessary if the patient has a lot of body hair, but it is not the first step when dealing with sweating. Drying the skin is more immediate and essential.
D. Place the electrodes below the clavicle. Electrode placement should follow standard EKG guidelines, and moving them to non-standard positions like below the clavicle can result in inaccurate readings.