Nursing Elites

1. What is the primary function of hemoglobin in red blood cells?

• A. Oxygen transport
• B. Immunity
• C. Blood clotting
• D. Carbon dioxide transport

Correct answer: A

Rationale: The correct answer is A: Oxygen transport. Hemoglobin in red blood cells binds to oxygen in the lungs and carries it to tissues throughout the body, releasing it where needed. This process is essential for cellular respiration and energy production. Choices B, C, and D are incorrect because hemoglobin's primary function is not related to immunity, blood clotting, or carbon dioxide transport. Hemoglobin's main role is to transport oxygen, ensuring adequate oxygen supply to body tissues for metabolic processes.

2. A client has a prescription for a transcutaneous electrical nerve stimulator (TENS) unit for pain management during the postoperative period following a lumbar laminectomy. Which information should the nurse reinforce about the action of this adjuvant pain modality?

• A. The discharge of electricity will distract the client's focus from the pain
• B. An infusion of medication in the spinal canal will block pain perception
• C. Pain perception in the cerebral cortex is dulled by the unit's discharge of an electrical stimulus
• D. A mild electrical stimulus on the skin surface closes the gates of nerve conduction for severe pain

Correct answer: D

Rationale: The correct answer is D. TENS works by delivering a mild electrical stimulus to the skin, which can help close the 'gates' in the nervous system to block pain signals from reaching the brain, thus reducing pain perception. Choice A is incorrect because TENS does not distract from pain but rather helps manage it. Choice B is incorrect as it describes a different pain management technique involving medication in the spinal canal. Choice C is incorrect because TENS acts peripherally on nerve conduction rather than dulling pain perception in the cerebral cortex.

3. The PN and UAP enter a client's room and find the client lying on the bed. The PN determines that the client is unresponsive. Which instruction should the PN give the UAP first?

• A. Obtain emergency help
• B. Feel for a carotid pulse
• C. Bring a glucometer to the room
• D. Check the blood pressure

Correct answer: A

Rationale: The correct answer is to instruct the UAP to obtain emergency help first. When a client is unresponsive, it could indicate a life-threatening condition that requires immediate intervention. Ensuring emergency help is on the way is the priority to address the potentially critical situation. Feeling for a carotid pulse, bringing a glucometer, or checking the blood pressure are important assessments but should come after taking steps to secure immediate assistance.

4. A female client taking a liquid iron preparation expresses concern that her tooth color has darkened since starting the medication. What action should the PN implement?

• A. Teach the client to use a straw when taking the medication to reduce further tooth staining
• B. Advise the client to withhold further doses until consulting with the healthcare provider
• C. Reassure the client that this change indicates the medication is having the desired effect
• D. Determine if the client is also experiencing mouth or gum pain and difficulty swallowing

Correct answer: A

Rationale: The correct action for the PN to implement is to teach the client to use a straw when taking the medication to reduce further tooth staining. Using a straw minimizes contact between the iron preparation and the teeth, helping prevent additional staining. Choice B is incorrect because withholding doses without consulting the healthcare provider could be detrimental to the client's health. Choice C is incorrect because darkening of tooth color is not an expected effect of liquid iron preparation and should not be reassured as a desired effect. Choice D is incorrect as it does not directly address the client's concern about tooth staining.

5. While providing oral care for a client who is unconscious, the nurse positions the client laterally and uses a basin to collect secretions. Which intervention is best for the nurse to implement?

• A. Swab the oral cavity with a washcloth
• B. Use oral swabs with normal saline
• C. Provide a Yankauer tip for oral suction
• D. Support the head with a small pillow

Correct answer: B

Rationale: Using oral swabs with normal saline is the best intervention in this scenario as it effectively cleans the oral cavity without causing irritation or dryness, which is crucial for an unconscious client. Swabbing the oral cavity with a washcloth may not provide thorough cleaning, and it can potentially cause irritation. Providing a Yankauer tip for oral suction is not necessary unless there are excessive secretions that need to be suctioned. Supporting the head with a small pillow, although important for comfort, is not directly related to oral care in an unconscious client.

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