Nursing Elites

1. Which disorder is characterized by demyelination of neurons in the central nervous system?

• A. Multiple sclerosis
• B. Parkinson's disease
• C. Alzheimer's disease
• D. Huntington's disease

Correct answer: A

Rationale: Multiple sclerosis is the correct answer. It is an autoimmune disease that specifically targets and damages the myelin sheath surrounding neurons in the central nervous system. This demyelination disrupts the transmission of nerve signals and leads to a variety of neurological symptoms. Parkinson's disease (Choice B), Alzheimer's disease (Choice C), and Huntington's disease (Choice D) are neurodegenerative disorders that do not primarily involve demyelination of neurons in the CNS. Parkinson's disease is characterized by the loss of dopamine-producing neurons, Alzheimer's disease by the formation of plaques and tangles in the brain, and Huntington's disease by a genetic mutation affecting nerve cells.

2. An 8-year-old is placed in 90-90 traction for a fractured femur resulting from a motor vehicle collision. Which finding requires further action by the nurse?

• A. No bowel movement for two days
• B. Mother assists child in changing positions
• C. Weights are touching the foot of the bed
• D. Child is able to move the toes freely when tickled

Correct answer: C

Rationale: The correct answer is C. In 90-90 traction, the weights should hang freely and not touch the foot of the bed to maintain proper traction and bone alignment. Option A is not necessarily a concern as bowel movements can be influenced by various factors, including diet changes and pain medication. Option B indicates good caregiver involvement, promoting comfort and preventing complications. Option D demonstrates neurovascular function, which is a positive finding. Therefore, the weights touching the foot of the bed is the finding that requires immediate attention to ensure the effectiveness of the traction.

3. 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.

4. A male client attends a community support program for mentally impaired and chemically abusing clients. The client tells the PN that his drugs of choice are cocaine and heroin. What is the greatest health risk for this client?

• A. Hypertension
• B. Hepatitis
• C. Glaucoma
• D. Diabetes

Correct answer: B

Rationale: The correct answer is B: Hepatitis. Hepatitis is the greatest health risk for this client due to the potential for contracting the disease through needle-sharing, common among drug users. This can lead to serious liver complications. While hypertension, glaucoma, and diabetes are all important health concerns, they are not directly associated with the drug abuse mentioned in the scenario.

5. Which condition is commonly screened for in newborns using the Guthrie test?

• A. Phenylketonuria (PKU)
• B. Cystic fibrosis
• C. Down syndrome
• D. Sickle cell anemia

Correct answer: A

Rationale: The Guthrie test is specifically designed to screen newborns for phenylketonuria (PKU), a metabolic disorder that can lead to intellectual disability if left untreated. Phenylketonuria is caused by the deficiency of an enzyme required to metabolize the amino acid phenylalanine. Screening for PKU in newborns is crucial as early diagnosis and intervention can prevent the severe consequences associated with the condition. Choices B, C, and D are incorrect as the Guthrie test is not used to screen for cystic fibrosis, Down syndrome, or sickle cell anemia.

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