Nokea
Which of the following is a key feature of autism spectrum disorder?
- A. Delayed speech development
- B. Hyperactivity
- C. Lack of interest in toys
- D. Aggressive behavior
Correct Answer: A
Rationale: Delayed speech development is a significant feature of autism spectrum disorder. Many children with autism exhibit delays in speech and language development, which can be one of the early signs of the condition. Hyperactivity, lack of interest in toys, and aggressive behavior are not key defining features of autism spectrum disorder. While some individuals with autism may exhibit these behaviors, they are not universally characteristic of the disorder.
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What is the most common cause of bronchiolitis in infants?
- A. Adenovirus
- B. Influenza virus
- C. Respiratory syncytial virus
- D. Parainfluenza virus
Correct Answer: C
Rationale: The correct answer is C, Respiratory syncytial virus (RSV). RSV is the leading cause of bronchiolitis, a common respiratory condition in infants that results in inflammation of the small airways in the lung. It is highly contagious and can cause severe respiratory distress in young children, particularly those under 2 years old. Choice A, Adenovirus, is not the most common cause of bronchiolitis in infants. Choice B, Influenza virus, may cause respiratory infections but is not the primary cause of bronchiolitis. Choice D, Parainfluenza virus, can cause croup and other upper respiratory infections but is not the main cause of bronchiolitis in infants.
Which reflex is expected to disappear by 4 months of age?
- A. Rooting reflex
- B. Moro reflex
- C. Babinski reflex
- D. Palmar grasp
Correct Answer: B
Rationale: The Moro reflex, also known as the startle reflex, typically disappears by 4 months as the infant's nervous system matures. This reflex is important for assessing the development of the nervous system in newborns. The Rooting reflex (Choice A) is related to turning the head in response to cheek stimulation; the Babinski reflex (Choice C) involves the fanning of toes in response to foot stimulation; and the Palmar grasp (Choice D) is the curling of the fingers around an object placed in the infant's hand. These reflexes have different timelines for disappearance and are not typically expected to be gone by 4 months of age.
The child is admitted with acute abdominal pain and possible appendicitis. What intervention is appropriate to relieve the abdominal discomfort during the evaluation?
- A. Place the child in the Trendelenburg position.
- B. Apply moist heat to the abdomen.
- C. Allow the child to assume a position of comfort.
- D. Administer a saline enema to cleanse the bowel.
Correct Answer: C
Rationale: Allowing the child to assume a position of comfort is appropriate as it helps alleviate discomfort without the risk of complications. Placing the child in the Trendelenburg position could increase intra-abdominal pressure and worsen the condition. Applying moist heat may lead to vasodilation and potential perforation in case of appendicitis. Administering a saline enema can be harmful if the appendix is inflamed or perforated.
A child with pyloric stenosis is having excessive vomiting. The nurse should assess for what potential complication?
- A. Hyperkalemia
- B. Hyperchloremia
- C. Metabolic acidosis
- D. Metabolic alkalosis
Correct Answer: D
Rationale: Excessive vomiting in pyloric stenosis leads to the loss of stomach acid (hydrochloric acid), resulting in metabolic alkalosis, not hyperkalemia, hyperchloremia, or metabolic acidosis. Metabolic alkalosis is characterized by a higher pH level in the blood due to the loss of acid and a relative increase in bicarbonate. Hyperkalemia is an elevated level of potassium in the blood and is not directly related to excessive vomiting in pyloric stenosis. Hyperchloremia is an excess of chloride in the blood, which is not typically associated with this condition. Metabolic acidosis is a condition characterized by a lower pH level in the blood, caused by an excess of acid or a loss of bicarbonate, which is not the typical complication seen in pyloric stenosis with excessive vomiting.
What is an important priority in dealing with the child suspected of having Wilms tumor?
- A. Intervening to minimize bleeding
- B. Monitoring temperature for infection
- C. Ensuring the abdomen is protected from palpation
- D. Teaching parents how to manage parenteral nutrition
Correct Answer: C
Rationale: The correct priority in dealing with a child suspected of having Wilms tumor is ensuring the abdomen is protected from palpation. Palpating the abdomen could lead to tumor dissemination, which is crucial to prevent the spread of cancerous cells. Intervening to minimize bleeding, monitoring temperature for infection, and teaching parents how to manage parenteral nutrition are not the immediate priorities in suspected cases of Wilms tumor.