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 B
Explanation
Choice A rationale
Dryness is not indicative of IV infiltration as this condition involves fluid leakage into surrounding tissue, typically leading to swelling, tenderness, or other abnormal signs at the site.
Choice B rationale
Edema is a common manifestation of IV infiltration caused by fluid leaking into interstitial spaces, leading to visible and palpable swelling, which may impair IV medication delivery and compromise tissue integrity.
Choice C rationale
Erythema often indicates inflammation or phlebitis, not infiltration, as infiltration usually causes pale, cool skin due to fluid collection in surrounding tissues rather than vascular irritation.
Choice D rationale
A distended vein is associated with venous congestion or occlusion rather than infiltration. Infiltration involves fluid leakage, leading to swelling and pallor, not vein distension or increased visibility.
Correct Answer is D
Explanation
Choice A rationale
Potassium chloride 20 mEq daily is a common dose for hypokalemia prevention or treatment. Normal serum potassium is 3.5–5.0 mEq/L. This dose is unlikely to cause adverse effects without significant hyperkalemia.
Choice B rationale
Hydrochlorothiazide 25 mg daily effectively manages hypertension by reducing fluid retention. It can cause hypokalemia; thus, monitoring serum potassium is crucial. Normal serum potassium range is 3.5–5.0 mEq/L.
Choice C rationale
Amlodipine 10 mg daily is a standard antihypertensive dose. It is a calcium channel blocker that dilates blood vessels, lowering blood pressure without significant adverse effects in most patients.
Choice D rationale
Clonidine 1 mg TID PRN for systolic blood pressure above 180 is excessive. Normal doses are 0.1–0.3 mg. High doses risk severe hypotension, bradycardia, and withdrawal symptoms. This requires clarification.
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