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The nurse is preparing a client for magnetic resonance imaging (MRI) to confirm or rule out a spinal cord lesion. During the MRI scan, which of the following would pose a threat to the client?
- A. The client lies still.
- B. The client wears a watch and wedding
- C. The client asks questions. band.
- D. the client hears thumping sounds.
Correct Answer: B
Rationale: The client wearing a watch and wedding band would pose a threat during the MRI scan. MRI machines use strong magnetic fields that can interact with metal objects. The presence of metal objects such as a watch and wedding band can lead to serious safety risks for the client inside the MRI machine. These metal objects can become projectiles or heat up, causing burns or other injuries. Thus, it is crucial for the client to remove all metal objects before undergoing an MRI scan to ensure their safety.
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During a routine examination of a 10-mo-old male infant, you find a white pupillary reflex of the right eye; the eye movements are normal. You suspect retinoblastoma. Of the following, the BEST confirmatory diagnostic evaluation of this infant is
- A. indirect ophthalmoscopy with slit-lamp examination
- B. examination under general anesthesia by an experienced ophthalmologist
- C. orbital ultrasonography
- D. brain MRI
Correct Answer: B
Rationale: Examination under anesthesia by an experienced ophthalmologist is the gold standard for diagnosing retinoblastoma.
A nurse is planning a teaching session for parents of preschool children. Which statement explains why the nurse should include information about morbidity and mortality?
- A. Life span statistics are included in the data.
- B. It explains effectiveness of treatment.
- C. Cost-effective treatment is detailed for the general population.
- D. High-risk age groups for certain disorders or hazards are identified.
Correct Answer: D
Rationale: Including information about morbidity and mortality is important in a teaching session for parents of preschool children because it helps identify high-risk age groups for certain disorders or hazards. By understanding which age groups are more vulnerable to specific health issues, parents can take proactive steps to protect their children and promote their overall well-being. This information also enables parents to recognize signs and symptoms early on, leading to timely interventions and better outcomes for their children's health.
A 3-year-old child from a suburban community presents with vomiting, diarrhea, and blurred vision. Physical examination reveals an afebrile child with pinpoint pupils, salivation, and muscular fasciculations. The child's lawn was treated yesterday for insects. Which of the following tests will establish the correct diagnosis?
- A. Blood-lead level
- B. 24-hour urine mercury level
- C. Plasma cholinesterase level
- D. Urine malathion level
Correct Answer: C
Rationale: The symptoms suggest organophosphate poisoning, which can be confirmed by measuring plasma cholinesterase levels, as organophosphates inhibit this enzyme.
You are examining an infant with multiple cutaneous hemangiomas; you suspect involvement of internal organs. The MOST common site of visceral involvement by hemangiomas is
- A. brain
- B. heart
- C. lung
- D. liver
Correct Answer: D
Rationale: Liver is the most common site of visceral involvement by hemangiomas.
The laboratory results of a patient with disseminated intravascular coagulation are likely to include:
- A. decreased levels of fibrin split products.
- B. increased levels of fibrinogen.
- C. increased platelet counts.
- D. prolonged prothrombin and partial thromboplastin times.
Correct Answer: D
Rationale: DIC leads to prolonged clotting times due to consumption of clotting factors and platelets.