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. What should be the primary action for a client who has just vomited 300 cc of bright red blood?

Correct answer: D

Rationale: The correct first action for a client who has just vomited 300 cc of bright red blood is to check the blood pressure. This assessment is crucial to evaluate for hypotension, which could indicate significant blood loss and the need for immediate intervention. Documenting the vomiting is important for the client's medical record but not the initial priority. Increasing IV fluids and getting a complete blood count are necessary steps but should follow the assessment of the client's hemodynamic status.

3. Which type of diet should the nurse provide to help a client who has major burns maintain a positive nitrogen balance?

Correct answer: A

Rationale: Clients with major burns are in a hypermetabolic state, leading to increased protein catabolism. Therefore, a high-protein diet is essential to help them maintain a positive nitrogen balance and support wound healing. High carbohydrate diets do not directly contribute to achieving a positive nitrogen balance, making choice B incorrect. Similarly, low carbohydrate diets are not recommended for clients with major burns as carbohydrates provide essential energy needed for healing. Low protein diets are contraindicated for clients with major burns as they require higher protein intake to support tissue repair and prevent further breakdown.

4. The advanced directive in a client's chart is dated August 12, 1998. The client's daughter produces a Power of Attorney for Health Care, dated 2003, which contains different care directions. What should the nurse do?

Correct answer: C

Rationale: The document dated 2003 supersedes the previous version and should be used as a basis for care directions. The nurse should follow the 2003 version, place it in the chart, and communicate the update appropriately to ensure that the most current care directions are followed. Choices A and B are incorrect because the 1998 version is now outdated, and the nurse should not rely on it for care decisions. Choice D is incorrect because the nurse should not delay following the updated document, and seeking clarification from the unit manager can lead to avoidable delays in care.

5. A client with a pleural drainage system to suction has gentle bubbling of the water seal. What should the nurse do?

Correct answer: D

Rationale: Gentle bubbling is a normal finding for a client with a pleural drainage system to suction, so it simply needs to be documented for monitoring purposes. If the bubbling becomes vigorous, it could indicate a leak, which would then require further investigation by the nurse. Therefore, the correct action at this point is to document the finding. Notifying the physician is not necessary for gentle bubbling as it is expected. Clamping the chest tube or replacing the system is inappropriate and could potentially harm the client as there is no indication for such actions based on the scenario provided.

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