Nursing Elites

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

• A. 2 liters/minute
• B. 4 liters/minute
• C. 6 liters/minute
• D. 8 liters/minute

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 with a spinal cord injury is preparing to return home from the rehabilitation unit. Which of the following statements by a family member indicates a need for further teaching regarding autonomic dysreflexia?

• A. "I should raise him to a sitting position."?
• B. "I should check for a fecal impaction."?
• C. "I should look for a kink in the urinary catheter tubing."?
• D. "I should observe whether symptoms worsen."?

Correct answer: D

Rationale: If the client develops signs or symptoms of autonomic dysreflexia, they need to be addressed immediately. If the family member is not able to relieve them, a healthcare provider needs to be notified immediately. The statement 'I should observe whether symptoms worsen' indicates a passive approach and does not address the urgency of the situation. Choices A, B, and C are correct as they involve active measures to address autonomic dysreflexia, such as raising the client to a sitting position, checking for a fecal impaction, and looking for a kink in the urinary catheter tubing.

3. Which of the following isoenzymes is elevated in a client who has had a myocardial infarction?

• A. CPK-BB
• B. CPK-MM
• C. CPK-MB
• D. CPK-MI

Correct answer: C

Rationale: CPK-MB is the correct answer as it is elevated in clients who have had a myocardial infarction. CPK-BB is elevated in clients with brain damage, and CPK-MM is elevated in clients with skeletal muscle damage. CPK-MI, mentioned in the rationale, does not exist, making it an incorrect choice.

4. When are pressure ulcers most likely to occur?

• A. when clients are left in one position in bed for extended periods of time.
• B. when clients are underweight.
• C. when clients are overweight.
• D. only in underweight and overweight clients.

Correct answer: A

Rationale: Pressure ulcers usually occur over bony prominences and are caused by decreased circulation. The client who is left in one position in bed for extended periods of time is more prone to decreased circulation to an area of the body and to acquiring a pressure ulcer. Choices B and C are incorrect as pressure ulcers are not exclusive to underweight or overweight clients. The key factor is prolonged pressure on the skin, not the weight of the client. Therefore, the correct answer is that pressure ulcers are most likely to occur when clients are immobilized in one position for extended periods of time.

5. The nurse is preparing task assignments for the day. Which task should the nurse assign to a nursing assistant?

• A. Monitoring for bleeding for a client who has just undergone cardiac catheterization
• B. Assisting a client who is getting up to ambulate for the first time after surgery
• C. Providing oral care to an unconscious client who requires oral care
• D. Completing the preoperative checklist for a client scheduled for a liver biopsy

Correct answer: C

Rationale: When delegating tasks, the nurse must consider the state nursing practice act guidelines and job descriptions. Providing oral care to an unconscious client is a task suitable for delegation to a nursing assistant. The nurse should give clear instructions on adapting the procedure for the client's needs and the signs of complications to watch for. Monitoring for bleeding after cardiac catheterization necessitates immediate nursing assessment, which requires critical thinking and intervention that exceeds a nursing assistant's scope of practice. Assisting a client with ambulation post-surgery carries the risk of orthostatic hypotension and should be performed by a licensed nurse. Completing a preoperative checklist for a client scheduled for a liver biopsy involves critical assessment and preparation that are within the nurse's scope of practice.

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