when a client needs oxygen therapy what is the highest flow rate that oxygen can be delivered via nasal cannula
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Nursing Elites

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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. A client has signed the informed consent for mastectomy of the left breast. On the morning of the surgical procedure, the client asks the nurse several questions about the procedure that make it obvious that she does not have an adequate comprehension of the procedure. What is the most appropriate response by the nurse?

Correct answer: B

Rationale: Informed consent is the authorization by a client or a client's legal representative to do something to the client. The surgeon is primarily responsible for explaining the surgical procedure and obtaining informed consent. If the client asks questions that alert the nurse to an inadequacy of comprehension on the client's part, the nurse has the obligation to contact the surgeon. Choice A is incorrect as the client should be allowed to ask questions even after signing the consent for surgery. Choice C is not the most appropriate response, as the primary concern is to address the client's lack of comprehension. Choice D is inaccurate, as while it is the surgeon's responsibility to explain the procedure, in this scenario, the nurse should take immediate action to ensure the client's understanding. Requesting the surgeon to visit and answer the client's questions is the most appropriate response in this situation, as it directly addresses the client's concerns and ensures proper informed consent is obtained.

3. A nurse is supervising a new nursing graduate in various procedures. Which action by the new nursing graduate constitutes a negligent act?

Correct answer: D

Rationale: Negligent acts in nursing include various errors that can harm the client, such as medication errors, intravenous therapy errors, burns, falls, failure to use aseptic technique, failure to provide adequate monitoring, and failure to report significant changes in a client's condition. In this scenario, using clean gloves to change a gastrostomy tube dressing is a negligent act because sterile gloves should be used when changing a dressing over broken skin. Choices A, B, and C are not negligent acts as they involve appropriate nursing actions: giving a verbal report, checking neurological signs, and contacting a healthcare provider about a change in a client's blood pressure.

4. Which of the following is not a function of parathyroid hormone?

Correct answer: B

Rationale: The correct answer is 'inhibiting renal tubular reabsorption of phosphorus.' Parathyroid hormone actually inhibits renal tubular reabsorption of phosphorus, making this choice the opposite of its function. Parathyroid hormone functions to move calcium from bones to the bloodstream (Choice A), promote renal tubular reabsorption of calcium (Choice C), and enhance renal production of vitamin D metabolites (Choice D). Therefore, all other choices are functions of parathyroid hormone except for the inhibition of phosphorus reabsorption.

5. The nurse is caring for a client recovering from a stroke who recently regained consciousness. The client is having difficulty communicating verbally with the team. Which of the following actions would be least appropriate?

Correct answer: C

Rationale: In this scenario, the least appropriate action would be to wait for the physician's order for speech therapy before assisting with the appropriate documentation. The nurse should start by collecting client data without needing the physician's order, use documents to provide information for the referral, and actively participate in the client referral process. Waiting for the physician's order unnecessarily delays potentially crucial therapy for the client's recovery, affecting the timeliness and effectiveness of care. Therefore, choice C is the least appropriate as immediate action is required in such situations.

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