when a client needs oxygen therapy what is the highest flow rate that oxygen can be delivered via nasal cannula
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1. When a client needs oxygen therapy, what is the highest flow rate that oxygen can be delivered via nasal cannula?

Correct answer: C

Rationale: The correct answer is 6 liters/minute. When a client requires oxygen therapy, the maximum flow rate that oxygen can be delivered via nasal cannula is 6 liters/minute. Nasal cannula can effectively deliver oxygen up to 6 liters/minute. Flow rates exceeding 6 liters/minute may lead to drying of the nasal passages and discomfort for the client. Higher flow rates, like 8 liters/minute, should be administered using a mask to ensure sufficient oxygenation. Options A, B, and D are incorrect as they indicate flow rates that surpass the recommended maximum for nasal cannula delivery.

2. The client with a diagnosis of hepatitis is experiencing pruritus. Which would be the most appropriate nursing intervention?

Correct answer: B

Rationale: Pruritus, or itching, in clients with hepatitis can be alleviated by adding moisturizing agents to bath water. Baby oil helps soothe and moisturize the skin, reducing dryness and itching. Warm showers, as in choice A, can be drying to the skin if taken too frequently, making it less suitable than adding oil to the bath water. Applying powder, as mentioned in choice C, can exacerbate dryness rather than alleviate it. Choice D suggests a cool-water rinse after bathing, which can help in retaining moisture and is less drying compared to hot water rinses.

3. A client scheduled for a left mastectomy and axillary lymph node dissection is wearing a wedding band on her left ring finger. The nurse should take which action?

Correct answer: C

Rationale: In most situations, a wedding band may be taped in place and worn during a surgical procedure. However, if there is a possibility that the client will experience swelling of the hand or fingers, the wedding band should be removed. On admission to a healthcare facility, the client is usually asked to sign a form that releases the agency from responsibility if a client's valuables are lost. After a mastectomy with axillary lymph node dissection, the client is at risk for lymphedema, which can result in swelling of the arm and hand on the affected side. Therefore, the appropriate nursing action is to ask the client to remove the wedding band and explain why. This ensures the client's safety and prevents potential complications. Option A is incorrect because taping the wedding band may not be sufficient if swelling occurs. Option B is incorrect as it does not address the immediate need to remove the wedding band. Option D is incorrect because it fails to provide the client with the necessary information about the potential risks of wearing the wedding band during surgery.

4. Quality is defined as a combination of all of the following except:

Correct answer: B

Rationale: Quality in any context is about meeting or exceeding customer requirements and exceeding customer expectations. It also involves conforming to standards to ensure consistency and reliability. Merely performing at the minimally acceptable level does not encompass the essence of quality, as it sets the bar at the lowest level of acceptability rather than aiming for excellence or customer satisfaction. Therefore, the correct answer is 'performing at the minimally acceptable level,' as this choice falls short in capturing the comprehensive definition of quality.

5. Which of the following microorganisms are considered normal body flora?

Correct answer: A

Rationale: Staphylococcus is considered normal body flora as it is commonly found on the skin, being a part of the normal microbiota. While streptococcus in the nares can be part of the normal flora of the upper respiratory tract, it is not as common or as widespread as staphylococcus on the skin. Candida albicans in the vagina is not considered normal flora; it is a common opportunistic pathogen in the vagina. Pseudomonas in the blood is also not considered normal body flora; pseudomonas is not typically found in the blood as part of the normal microbiota.

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