Nursing Elites

1. What is the function of the enzyme lactase in the digestive system?

• A. Breaks down lactose into glucose and galactose
• B. Breaks down proteins into amino acids
• C. Converts starch into maltose
• D. Breaks down fats into fatty acids

Correct answer: A

Rationale: The correct answer is A: 'Breaks down lactose into glucose and galactose.' Lactase is an enzyme in the small intestine that specifically breaks down lactose, the sugar found in milk, into glucose and galactose for absorption. Choice B is incorrect because proteins are broken down into amino acids by protease enzymes. Choice C is incorrect because the enzyme amylase converts starch into maltose. Choice D is incorrect as lipase enzymes break down fats into fatty acids.

2. What is the primary role of the sinoatrial (SA) node in the heart?

• A. Pacemaker of the heart
• B. Blood pressure regulation
• C. Electrical conduction delay
• D. Stimulating muscle contraction

Correct answer: A

Rationale: The correct answer is A: Pacemaker of the heart. The SA node, known as the natural pacemaker, initiates the electrical impulses that set the rhythm for the heartbeat. It is responsible for coordinating the heart's contractions by generating electrical signals at regular intervals. Choice B is incorrect as the SA node's primary function is not related to blood pressure regulation. Choice C is incorrect as the SA node does not cause electrical conduction delay but rather initiates and conducts the electrical impulses. Choice D is incorrect as the SA node does not directly stimulate muscle contraction but rather initiates the electrical events that lead to muscle contraction.

3. The UAP reports to the nurse that a client refused to bathe for the third consecutive day. Which action is best for the nurse to take?

• A. Explain the importance of good hygiene to the client
• B. Ask family members to encourage the client to bathe
• C. Reschedule the bath for the following day
• D. Ask the client why the bath was refused

Correct answer: D

Rationale: The correct action for the nurse to take is to ask the client why the bath was refused. Understanding the client's reason for refusal is crucial in identifying and addressing any underlying concerns or issues that may be contributing to the refusal. This approach promotes open communication, client-centered care, and helps in developing a plan of care that is tailored to the client's needs and preferences. Choices A, B, and C do not directly address the root cause of the refusal and may not effectively resolve the situation.

4. The PN is reviewing care instructions with a client who has diabetic retinopathy and is experiencing glare around lights. What should the PN reinforce with the client?

• A. Cover eyes with moist, cool compresses to reduce glare
• B. Make adjustments to personal schedule to avoid driving at night
• C. Exert pressure on the inner canthus when tearing occurs
• D. Apply an eye shield at bedtime after instilling eye drops

Correct answer: B

Rationale: The correct answer is B. Avoiding driving at night is recommended for clients experiencing glare around lights due to diabetic retinopathy. This can help reduce the risk of accidents and visual discomfort. Making adjustments to the personal schedule to avoid nighttime driving is a practical approach to manage the glare. Choices A, C, and D are incorrect because covering eyes with compresses, exerting pressure on the inner canthus, or applying an eye shield are not effective strategies for managing glare associated with diabetic retinopathy.

5. A 50-year-old female is in the hospital with peripheral artery disease. In the nursing care plan, the nurse lists the following nursing diagnosis: Ineffective tissue perfusion: peripheral related to venous stasis. Which of the following would not be an appropriate nursing action to list in the implementation of this diagnosis?

• A. Keep the client's extremities cold
• B. Check for strength and symmetry of peripheral pulses
• C. Keep the client's legs elevated
• D. Monitor for any constrictions, such as clothes or covers that are too tight around the legs

Correct answer: A

Rationale: Keeping the client’s extremities cold would worsen perfusion issues and is not recommended. In peripheral artery disease, maintaining warmth is crucial to promote vasodilation and improve blood flow. Checking peripheral pulses for strength and symmetry, keeping the client's legs elevated to reduce venous stasis, and monitoring for constrictions that may impair circulation are appropriate nursing actions to enhance tissue perfusion in this case. Thus, option A is incorrect as it would hinder perfusion in the affected extremities.

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