Which of the following is correct about a nurse hygiene?
Wash hands with cold water for at least 15 seconds and dry with a towel.
Wash hands with soap and warm water for at least 10 seconds and air dry.
Wash hands with soap and warm water for at least 15 seconds and then dry hands with a clean paper towel.
Wash hands with only water and dry with a clean paper towel.
The Correct Answer is C
Choice A rationale
Washing hands with cold water is less effective for removing pathogens compared to warm water. Warm water opens pores and enhances soap’s efficacy in breaking down oils and debris. Duration is also insufficient.
Choice B rationale
Washing for 10 seconds does not provide sufficient time for thorough microbial removal as evidence supports 15-20 seconds for optimal hand hygiene. Air drying increases the risk of recontamination and bacterial persistence.
Choice C rationale
Using soap and warm water for at least 15 seconds effectively removes microorganisms, reducing cross-infection. Drying with clean paper towels prevents bacterial growth and contamination compared to air drying or reused cloths.
Choice D rationale
Washing with water alone lacks the surfactant action of soap, which emulsifies oils and debris carrying bacteria. Drying with a clean towel prevents contamination but cannot compensate for soap absence.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
A carotid bruit signifies turbulent blood flow in the carotid artery, often due to arterial narrowing. It does not directly indicate ineffective cardiac contractions or relate to cardiac output efficiency.
Choice B rationale
A heart murmur indicates abnormal blood flow across heart valves, which can result from structural defects or valve dysfunction. It does not directly measure or confirm ineffective cardiac contractions.
Choice C rationale
A pulse deficit occurs when heartbeats are not effectively generating palpable pulses, indicating weak cardiac contractions or poor perfusion. This suggests the heart is not pumping effectively.
Choice D rationale
A bounding radial pulse indicates strong cardiac contractions with increased stroke volume or sympathetic stimulation. It does not signify ineffective cardiac contractions but rather heightened cardiovascular activity.
Correct Answer is ["A","B","C"]
Explanation
Choice A rationale
Shaking the inhaler before use ensures medication mixing for accurate dosing. Without agitation, active ingredients may separate, delivering inconsistent or inadequate amounts of the drug.
Choice B rationale
Holding the breath for 10 seconds post-inhalation promotes medication deposition in distal airways, enhancing efficacy. This pause allows gravitational and diffusional medication settling in alveoli.
Choice C rationale
Deep inhalation through the mouth optimizes medication delivery to lower respiratory tracts. Shallow breathing or nasal inhalation can reduce penetration, limiting therapeutic effects.
Choice D rationale
Holding the inhaler 2 inches from the mouth diminishes medication delivery efficiency. Proper technique involves creating a seal with lips around the mouthpiece to direct aerosolized medication into the lungs.
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