A nurse is caring for a client admitted with a rash. They are trying to rule out (r/o) varicella. Before entering the room, the nurse should be instructed to wear what kind of mask?
N95 (personal respirator mask).
Surgical mask.
They don’t need a mask.
Only the client needs a mask.
The Correct Answer is A
Choice A Reason:
“N95 (personal respirator mask)” is correct because varicella (chickenpox) is an airborne disease. The N95 mask is designed to filter out at least 95% of airborne particles, making it essential for protecting healthcare workers from inhaling infectious agents.
Choice B Reason:
“Surgical mask” is incorrect because while surgical masks provide a barrier against large respiratory droplets, they do not offer sufficient protection against airborne particles. Varicella can be transmitted through tiny airborne droplets, which necessitates the use of an N95 mask.
Choice C Reason:
“They don’t need a mask” is incorrect because healthcare workers must wear appropriate personal protective equipment (PPE) to prevent the spread of infectious diseases. Not wearing a mask would put the nurse at risk of contracting varicella.
Choice D Reason:
“Only the client needs a mask” is incorrect because while it is important for the client to wear a mask to reduce the spread of infectious droplets, the nurse also needs to wear an N95 mask to protect themselves from airborne transmission.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason:
“Delivers a low concentration of oxygen” is incorrect because a nasal cannula can deliver varying concentrations of oxygen depending on the flow rate set by the healthcare provider. The concentration can range from low to moderate, typically between 24% to 44%.
Choice B Reason:
“Delivers a constant rate of oxygen” is partially correct but not entirely accurate. While the flow rate can be constant, the key aspect is the specific concentration of oxygen delivered, which is more relevant to the client’s understanding.
Choice C Reason:
“Delivers a high concentration of oxygen” is incorrect because nasal cannulas are generally used for low to moderate oxygen delivery. High concentrations of oxygen are typically delivered through other devices like non-rebreather masks or high-flow nasal cannulas.
Choice D Reason:
“Delivers a constant flow of a specific concentration of oxygen” is correct. This explanation accurately describes how a nasal cannula works. It provides a continuous flow of oxygen at a specific concentration, which is adjusted based on the client’s needs and the healthcare provider’s prescription.

Correct Answer is C
Explanation
Choice A reason: Apple juice is an appropriate choice for a full liquid diet. It is a clear liquid that provides hydration and some nutrients without putting strain on the digestive system. Apple juice is easily digestible and does not contain any solid particles that could be problematic for a client recovering from abdominal surgery.
Choice B reason: Smoothies can be included in a full liquid diet as long as they are well-blended and do not contain any solid chunks. Smoothies can provide essential nutrients and calories, which are important for recovery. They can be made with fruits, vegetables, and protein supplements to ensure a balanced intake.
Choice C reason: Mashed potatoes and gravy are not suitable for a full liquid diet. Although mashed potatoes are soft, they are not liquid and can be difficult to digest for someone on a full liquid diet. The gravy may also contain small particles or thickeners that are not appropriate for this diet. A full liquid diet is intended to include only foods that are completely liquid or will turn to liquid at room temperature.
Choice D reason: Chicken broth is an excellent choice for a full liquid diet. It is a clear liquid that provides hydration and some nutrients without adding any solid particles to the diet. Chicken broth is gentle on the digestive system and can help maintain electrolyte balance.
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