A medical assistant is preparing a standard bleach solution to clean medical equipment. Which of the following dilution ratios should the assistant use?
1:5
1:10
1:15
1:20
The Correct Answer is B
A. 1:5: This ratio would create a stronger solution than typically recommended for disinfection, which might not be necessary and could be harsh on equipment.
B. 1:10: A 1:10 dilution of bleach to water is commonly used for disinfecting surfaces and cleaning medical equipment, as it provides effective disinfection while being safe for equipment.
C. 1:15: This dilution might not be strong enough to ensure effective disinfection.
D. 1:20: This ratio is even more diluted and may not provide adequate disinfectant strength for cleaning purposes.
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Correct Answer is B
Explanation
A. Applying powder to the site: Powder should not be applied to the site as it can interfere with electrode adhesion and signal transmission.
B. Wiping the site with alcohol and allowing to air dry: Wiping the site with alcohol helps to remove oils and debris, improving electrode adhesion and signal quality. Allowing the site to dry ensures proper contact between the electrode and the skin.
C. Taping the electrodes to the skin: Taping is not necessary if the electrodes are properly adhered with the adhesive backing. Excessive taping could cause discomfort or interfere with the electrode function.
D. Allowing the electrodes to sit for several hours before application: Electrodes should be applied immediately after preparation. Allowing them to sit for an extended period is not necessary and does not improve the quality of the EKG.
Correct Answer is D
Explanation
A. An adult patient is watching a demonstration on the proper use of a meter-dose inhaler: This is related to managing a respiratory condition, not directly to communicable disease prevention.
B. An adult patient is being shown how to safely lift a heavy object: This pertains to body mechanics and injury prevention, not communicable disease prevention.
C. An older adult patient is listening to an explanation of risks and benefits of the flu vaccine: Although the flu vaccine helps prevent disease, the specific focus is not directly on communicable disease prevention strategies.
D. A school-age patient is being taught about cough etiquette: Teaching cough etiquette is a direct method of preventing the spread of communicable diseases.