Nursing Elites

1. 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.

2. The PN notes that a UAP is ambulating a male client who had a stroke and has right-sided weakness. The UAP is walking on the client's left side. Which action should the PN take?

• A. Instruct the UAP to walk on the client's affected side
• B. Take over the ambulation and provide guidance to the UAP immediately
• C. Provide the client with an assistive device, such as a cane or walker
• D. Tell the UAP to take the client back to his room

Correct answer: A

Rationale: The correct action for the PN to take is to instruct the UAP to walk on the client’s affected side. This is essential to provide the necessary support and prevent falls, especially when the client has weakness on one side due to a stroke. Walking on the affected side helps provide stability and assistance to the weaker side. Choice B is incorrect because it would be more appropriate for the PN to provide immediate guidance and correct the UAP's positioning rather than taking over the task completely. Choice C is incorrect because while assistive devices may be beneficial, the immediate concern is the UAP's positioning during ambulation, not providing the client with an assistive device. Choice D is incorrect as there is no indication to return the client to his room unless it is necessary for his safety or well-being.

3. A dispersion consists of a solute dispersed through a dispersing vehicle. Which of the following dispersions is a liquid for topical application that contains insoluble solids or liquids?

• A. Ointment
• B. Lotion
• C. Paste
• D. Gel

Correct answer: B

Rationale: The correct answer is B, 'Lotion.' A lotion is a liquid dispersion that contains insoluble solids or liquids for topical application. Ointments are more semi-solid and occlusive, pastes are thicker and contain higher concentrations of solids, and gels have a jelly-like consistency due to their three-dimensional network structure. Therefore, among the options, a lotion is the most suitable choice for containing insoluble solids or liquids for topical application.

4. 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 PN?

• 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: In 90-90 traction, it is crucial to ensure that the weights are not touching the foot of the bed as this can disrupt the effective application of traction. This interference can hinder the proper alignment of the fractured femur and impede the healing process. Therefore, this finding requires immediate action to prevent complications. Choices A, B, and D are not directly related to the proper application of traction and do not pose a risk to the patient's treatment or well-being. No bowel movement for two days may indicate constipation but does not directly relate to the traction. Mother assisting the child in changing positions is a supportive action. The child being able to move the toes freely when tickled indicates neurological function, which is a positive sign.

5. 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.

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