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. A client who had a right total shoulder replacement is being prepared for discharge. What should the nurse emphasize to the client to prevent complications?

• A. Avoid lifting objects with the right arm until cleared by the surgeon.
• B. Perform shoulder exercises to regain strength.
• C. Use a sling at all times, even during sleep.
• D. Apply heat to the shoulder to reduce stiffness.

Correct answer: A

Rationale: The correct answer is to avoid lifting objects with the right arm until cleared by the surgeon. After a total shoulder replacement, it is essential to protect the new joint to prevent dislocation or injury. Lifting heavy objects prematurely can lead to complications. While performing shoulder exercises is important for strength, they should be done as per the healthcare provider's instructions to avoid strain on the new joint. Using a sling at all times, as in choice C, is not necessary once the client has regained enough strength and mobility. Applying heat, as in choice D, may not be recommended post-surgery; cold therapy is often preferred to reduce swelling and pain.

3. The client with schizophrenia who continues to repeat the last words heard is exhibiting a sign of disturbed thought processes. Which nursing problem should the nurse document in the medical record?

• A. Altered sensory perception
• B. Impaired social interaction
• C. Risk for self-directed violence
• D. Disturbed thought processes

Correct answer: D

Rationale: The correct answer is D: Disturbed thought processes. Echolalia, the repetition of words, is a sign of disturbed thought processes commonly seen in clients with schizophrenia. It reflects a disorganization in thinking rather than a sensory perception issue (Choice A). Impaired social interaction (Choice B) refers to difficulties in relating to others, which is not the primary concern in echolalia. Risk for self-directed violence (Choice C) focuses on potential harm to self, which is separate from the repetitive behavior of echolalia.

4. Which type of isolation is required for a patient with measles?

• A. Contact isolation
• B. Airborne isolation
• C. Droplet isolation
• D. Reverse isolation

Correct answer: B

Rationale: The correct answer is B: Airborne isolation. Measles is highly contagious and can be transmitted through airborne particles, so airborne isolation is necessary to prevent its spread. Choice A, Contact isolation, is incorrect because measles is not primarily transmitted through direct contact. Choice C, Droplet isolation, is also incorrect as measles is not transmitted through large droplets but through smaller airborne particles. Choice D, Reverse isolation, is used to protect a patient from outside infections, not to prevent the spread of a contagious disease like measles.

5. When caring for a patient with a fresh tracheostomy, what is the nurse’s first priority?

• A. Providing humidified oxygen
• B. Ensuring the tracheostomy ties are secure
• C. Suctioning the tracheostomy tube as needed
• D. Monitoring for signs of infection

Correct answer: B

Rationale: The correct answer is B: Ensuring the tracheostomy ties are secure. This is the nurse's first priority because it is critical to prevent accidental decannulation, which could compromise the patient’s airway. Providing humidified oxygen, suctioning the tracheostomy tube, and monitoring for signs of infection are important aspects of care but ensuring the tracheostomy ties' security takes precedence to maintain the patient's airway.

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