Osteosarcoma is the most common primary malignant bone tumor in children and adolescents; it has multiple subtypes and requires different modalities of treatment including surgery and chemotherapy. Of the following, the subtype of osteosarcoma which is treated by surgery alone is
- A. fibroblastic
- B. chondroblastic
- C. parosteal
- D. periosteal
Correct Answer: D
Rationale: Periosteal osteosarcoma is often treated with surgery alone if margins are clear.
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Low birth weight or premature infants are screened for anemia at birth and again at the age of
- A. 2 months
- B. 4 months
- C. 6 months
- D. 8 months
Correct Answer: C
Rationale: Anemia screening for low birth weight or premature infants is recommended at 6 months.
Which manifestation is more specific to occur in anaplastic large cell lymphoma (ALCL) than other types of non-Hodgkin lymphoma?
- A. primary bone marrow involvement
- B. intestinal involvement
- C. CNS involvement
- D. primary mediastinal involvement
Correct Answer: D
Rationale: Primary mediastinal involvement is a hallmark feature of ALCL.
The nurse is talking to a parent of an infant with heart failure about feeding the infant. Which statement about feeding the child is correct?
- A. "You may need to increase the caloric density of your infant's formula."
- B. "You should feed your baby every 2 hours."
- C. "You may need to increase the amount of formula your infant eats with each feeding."
- D. "You should place a nasal oxygen cannula on your infant during and after each feeding."
Correct Answer: A
Rationale: In infants with heart failure, they may have increased metabolic demands due to their condition. Thus, it may be necessary to increase the caloric density of the infant's formula to ensure adequate nutrition and energy intake. This can help support the infant's growth and provide the necessary energy for their increased metabolic needs. Increasing the amount of formula or feeding too frequently (every 2 hours) may not be necessary and could lead to other issues like overfeeding. Placing a nasal oxygen cannula on the infant during and after each feeding (Option D) is not typically related to feeding practices for an infant with heart failure.
The MOST common cause of obstructive sleep apnea in children is
- A. obesity
- B. allergies
- C. adenotonsillar hypertrophy
- D. pharyngeal reactive edema due to gastroesophageal reflux
Correct Answer: C
Rationale: Adenotonsillar hypertrophy is the leading cause of obstructive sleep apnea in children.
all of the following may be present in child with cretinism except:
- A. prolonged jaundice
- B. umbilical hernia
- C. wet skin
- D. feeding problem
Correct Answer: A
Rationale: Cretinism is a condition caused by congenital hypothyroidism. Common features of cretinism include umbilical hernia, wet skin, and feeding problems. Prolonged jaundice is not typically associated with cretinism. Jaundice is more commonly seen in conditions such as neonatal hepatitis or biliary atresia.