Nursing Elites

1. The nurse is teaching a client about sleep and gives background information on normal sleep patterns. Which of the following substances promotes sleep?

• A. serotonin
• B. cortisol
• C. alcohol
• D. narcotics

Correct answer: A

Rationale: Serotonin is a substance found in the body that promotes sleep. It plays a role in the synthesis of a hypnogenic factor that directly induces sleep. Cortisol is a stress hormone that can disrupt sleep patterns. Alcohol can disrupt REM sleep and negatively impact sleep quality. Narcotics, like alcohol, can interfere with sleep architecture and lead to poor quality sleep. Therefore, the correct answer is serotonin as it is associated with promoting sleep, while the other substances listed can have negative effects on sleep patterns.

2. When planning task assignments for five clients on the skilled nursing unit in a long-term care facility, which task should a licensed practical nurse (LPN) assign to another LPN?

• A. Bathing a client who is confused and requires assistance with a shower
• B. Administering regular insulin in accordance with a sliding-dosage scale every 4 hours to a client with diabetes mellitus
• C. Assisting a client requiring a bed bath and frequent ambulation with a cane
• D. Transporting a client who must be accompanied to physical therapy twice during the shift

Correct answer: B

Rationale: When assigning tasks, the nurse must consider the skills and educational level of the nursing staff. The nursing assistant may be assigned tasks like caring for a confused client, assisting with a shower or a bed bath, ambulating a client with a cane, and accompanying a client to physical therapy. The LPN is educated to administer medications like regular insulin in accordance with a sliding scale. This task requires a higher level of training and knowledge than the tasks that can be delegated to a nursing assistant. Administering insulin involves assessing blood glucose levels, calculating dosages, and understanding the effects of insulin therapy on the client's condition. Therefore, the correct answer is administering regular insulin to a client with diabetes mellitus. Choices A, C, and D involve tasks that are within the scope of practice of a nursing assistant, not an LPN.

3. Which of the following devices may be applicable to a bedridden patient to address potential venous insufficiency?

• A. Shear-reducing mattress
• B. Sequential compression devices
• C. Hiking stockings
• D. Non-skid socks

Correct answer: B

Rationale: For a bedridden patient with potential venous insufficiency, sequential compression devices (SCDs) and compression stockings are appropriate choices. SCDs help improve venous return from the lower extremities by applying sequential pressure, aiding circulation. Compression stockings also assist in preventing blood from pooling in the legs by applying pressure to support venous return. Shear-reducing mattresses are not directly related to managing venous insufficiency, as they are designed to reduce friction and shear forces on the skin to prevent pressure ulcers. Non-skid socks are primarily used for fall prevention and have no direct impact on venous insufficiency.

4. Which of the following lab values is elevated first after a client has a myocardial infarction?

• A. LDH
• B. troponin
• C. CPK
• D. SGOT

Correct answer: B

Rationale: The correct answer is troponin. Troponin levels are the most specific and sensitive markers for myocardial infarction, and they begin to rise within a few hours after the event. CPK, SGOT, and LDH are also enzymes that can indicate myocardial damage, but troponin is the earliest and most specific indicator. CPK typically rises 4-8 hours after an infarction, followed by SGOT (AST) at 8-12 hours, and LDH at 12-24 hours post-infarction.

5. An example of a process standard on a med-surg unit is:

• A. a procedure for changing IV tubing.
• B. a policy for staffing.
• C. the job description of the CEO (chief executive officer).
• D. a procedure for checking waveforms on a client being treated with an intra-aortic balloon pump.

Correct answer: D

Rationale: Process standards define the actions and behaviors required by staff to provide care on a med-surg unit. A procedure for changing IV tubing is a critical psychomotor skill necessary for safe and effective patient care in this setting. Choice B, a policy for staffing, pertains more to organizational management rather than specific care processes on the unit. Choice C, the job description of the CEO, delineates the responsibilities of the organization's top executive and is not a process standard for frontline staff. Choice D, a procedure for checking waveforms on a client with an intra-aortic balloon pump, is more specific to a cardiac care unit and not typically performed on a med-surg unit.

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