Nokea
When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:
- A. nondisjunction.
- B. X-linked recessive inheritance.
- C. genomic imprinting.
- D. autosomal dominant inheritance.
Correct Answer: A
Rationale: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.
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An order is written for an isotonic enema for a 2-year-old child. What is the maximum amount of fluid the nurse should administer without a specific order from the health care provider?
- A. 100 to 150 mL
- B. 155 to 250 mL
- C. 255 to 360 mL
- D. 365 to 500 mL
Correct Answer: B
Rationale: For a 2-year-old child, the maximum recommended amount of fluid for an isotonic enema is between 155 to 250 mL to prevent overdistension and potential harm. Choice A (100 to 150 mL) is too low and may not be effective in achieving the desired outcome. Choices C (255 to 360 mL) and D (365 to 500 mL) exceed the safe range for a 2-year-old child and can lead to overdistension, electrolyte imbalance, or other complications. Therefore, the correct answer is B.
While teaching a parent how to prevent accidents while caring for a 6-month-old infant, what motor development ability should be emphasized?
- A. Sits up
- B. Rolls over
- C. Crawls short distances
- D. Stands while holding on to furniture
Correct Answer: B
Rationale: The correct answer is B: Rolls over. At 6 months, most infants can roll over, increasing the risk of falls. It is important to emphasize to the parent the need for careful supervision to prevent accidents. While choices A, C, and D are also milestones in infant motor development, rolling over at this age poses a higher risk of accidents due to the increased mobility and potential for falls.
A 2-year-old child with a diagnosis of atopic dermatitis is being discharged. What should the nurse include in the discharge teaching?
- A. Avoid triggers that cause flare-ups
- B. Apply topical corticosteroids as prescribed
- C. Use a soft toothbrush for oral care
- D. Avoid contact with sick individuals
Correct Answer: B
Rationale: The correct answer is to 'Apply topical corticosteroids as prescribed.' Atopic dermatitis is a condition characterized by inflammation and itchiness of the skin. Topical corticosteroids are commonly used to reduce inflammation and relieve symptoms in atopic dermatitis. Teaching the caregiver to apply the medication as prescribed by the healthcare provider is crucial for managing the child's condition effectively. Choices A, C, and D are not the priority discharge teaching for atopic dermatitis. While avoiding triggers that cause flare-ups and contact with sick individuals can be beneficial, the immediate focus should be on proper medication administration to address the underlying inflammation and symptoms of atopic dermatitis.
What is one of the most important factors that a healthcare professional must consider when parents of a toddler request to be present at a procedure occurring on the hospital unit?
- A. Type of procedure to be performed
- B. Individual assessment of the parents
- C. Whether the toddler wants the parents present
- D. Probable reaction to the toddler's response to pain
Correct Answer: B
Rationale: When parents of a toddler request to be present during a procedure, an individual assessment of the parents is crucial. This assessment helps healthcare professionals understand the parents' ability to cope with the situation, provide support to their child, and ensure a conducive environment for the procedure. Choice A is not as critical because the focus is on the parents' readiness rather than the specific procedure. Choice C, considering the toddler's desire, is important but not as crucial as assessing the parents. Choice D, anticipating the toddler's response to pain, is relevant but secondary to assessing the parents' readiness and support capabilities.
A child with Duchenne muscular dystrophy is to receive prednisone as part of their treatment plan. After teaching the child's parents about this drug, which statement by the parents indicates the need for additional teaching?
- A. We should give this drug after he eats something.
- B. We need to watch carefully for possible infections.
- C. The drug should not be stopped abruptly.
- D. He might experience weight gain with this drug.
Correct Answer: A
Rationale: The correct statement should be, 'We should give this drug after he eats something.' Prednisone should be administered with food to help prevent gastrointestinal upset. Choice B is correct as monitoring for infections is important due to prednisone's immunosuppressive effects. Choice C is correct as prednisone should not be stopped suddenly to prevent withdrawal symptoms. Choice D is correct as weight gain is a common side effect of prednisone.