Nokea
Which statement correctly explains the etiology of Down syndrome?
- A. There is an extra chromosome on the 21st pair.
- B. There is a missing chromosome on the 21st pair.
- C. There are two pairs of the 21st chromosome.
- D. The chromosome's 21st pair is missing.
Correct Answer: A
Rationale: Down syndrome is attributed to an extra chromosome on the 21st pair.
You may also like to solve these questions
What are priority nursing interventions designed to do for a 4-year-old child with cerebral palsy?
- A. Assist with referral to specialized education.
- B. Support the child with independent toileting.
- C. Assist the child to develop effective communication.
- D. Encourage the child to ambulate independently.
Correct Answer: D
Rationale: A child with cerebral palsy is usually in need of support with communication, locomotion, and self-help.
The parents of a child who has been diagnosed with sickle cell anemia ask why their child experiences pain. What is the most likely cause of the pain?
- A. Inflammation of the vessels
- B. Obstructed blood flow
- C. Overhydration
- D. Stress-related headaches
Correct Answer: B
Rationale: The signs and symptoms of sickle cell anemia include the sickle-shaped cells clumping and obstructing blood flow, which causes severe tissue hypoxia and necrosis leading to pain.
The nurse explains that cognitive impairment is categorized by four levels that depend on the intelligence quotient (IQ). How is a child with an IQ of 45 classified?
- A. Within the normal low range
- B. Educable
- C. Trainable
- D. Severe
Correct Answer: C
Rationale: The category of trainable is identified on the basis of an IQ of 35 to 55.
What could suddenly occur in a child with acute epiglottitis?
- A. Increased carbon dioxide levels
- B. Airway obstruction
- C. Inability to swallow
- D. Bronchial collapse
Correct Answer: B
Rationale: In acute epiglottitis, the infected epiglottis becomes inflamed and causes total airway obstruction. Immediate treatment of acute epiglottitis includes an artificial airway.
What should the nurse assess in an infant who has been diagnosed with hypertrophic pyloric stenosis?
- A. A history of diarrhea following each feeding
- B. Gastric pain evidenced by vigorous crying
- C. Poor appetite due to a poor sucking reflex
- D. An olive-shaped mass right of the midline
Correct Answer: D
Rationale: Examination of the abdomen may assist in the diagnosis and reveal key signs of hypertrophic pyloric stenosis. Visible peristaltic waves that move from left to right across the epigastric region may be evident, and palpation may reveal an olive-shaped mass in this area to the right of the midline.