during early tooth development vitamin a deficiency leads to enamel hypoplasia and defective dentin formation because of its effect on soft tissues an during early tooth development vitamin a deficiency leads to enamel hypoplasia and defective dentin formation because of its effect on soft tissues an
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam

1. During early tooth development, vitamin A deficiency leads to enamel hypoplasia and defective dentin formation. Because of its effect on soft tissues and bone, vitamin A contributes to normal spacing of teeth.

Correct answer: A

Rationale: Both statements are true. The effect of vitamin A on the growth of soft tissues and bones naturally extends to the teeth and surrounding structures. Enamel hypoplasia, involving defective enamel matrix and incomplete calcification of enamel and dentin, can be due to vitamin A deficiency. The effect of this vitamin upon surrounding bone directly affects spacing patterns of the teeth within the bone and dentition. Choice A is correct because both statements accurately describe the influence of vitamin A on tooth development. Choices B, C, and D are incorrect as they do not reflect the accuracy of the statements provided.

2. Which drug is usually the best choice for patient-controlled analgesia (PCA) for a child in the immediate postoperative period?

Correct answer: B

Rationale: Morphine is the drug of choice for PCA in children because of its efficacy, safety profile, and rapid onset of action for pain management.

3. A nurse is providing discharge teaching to a client who is postoperative following a total hip arthroplasty. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: The correct answer is C: 'Avoid crossing your legs when sitting.' After a total hip arthroplasty, it is important for clients to avoid crossing their legs to prevent complications such as dislocation. Crossing the legs can put strain on the new hip joint, increasing the risk of dislocation. Choice A is incorrect as crossing legs can be harmful. Choice B is incorrect as bending at the waist can strain the hip joint, leading to complications. Choice D is incorrect as using a raised toilet seat is recommended after hip surgery to prevent excessive bending at the hip joint.

4. A client starting highly active antiretroviral therapy (HAART) for HIV infection is being educated by a nurse on preventing medication resistance. What information should the nurse provide the client about resistance?

Correct answer: C

Rationale: To prevent the development of medication resistance, it is crucial for the client to take antiretroviral medication consistently at the same time daily without missing doses. This practice helps maintain effective drug levels in the body, reducing the risk of resistance development.

5. A nurse is teaching a newly licensed nurse about therapeutic techniques to use when leading a group on a mental health unit. Which of the following group facilitation techniques should the nurse include in the teaching?

Correct answer: D

Rationale: The correct answer is D: 'Use modeling to help the clients improve their interpersonal skills.' Modeling is an effective therapeutic technique where the leader demonstrates appropriate behaviors for the group to learn from. This technique can help clients improve their interpersonal skills by observing and replicating positive behaviors. Choices A, B, and C are incorrect. Sharing personal opinions to influence the group's values may not be appropriate as it could hinder the group dynamics and individual autonomy. Comparing accomplishments against a previous group is not a recommended technique as each group is unique, and comparisons may not be beneficial. Yielding in conflicts to maintain group harmony may lead to unresolved issues and hinder the group's progress.

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