A 9-year-old boy develops acute myelogenous leukemia (AML) one year after completion of therapy for soft tissue sarcoma at his right thigh. Which of the following chemotherapeutic agents is MOST likely the cause of secondary acute myelogenous leukemia AML in this boy?

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: D

Rationale: Upper arm circumference has been found to correlate best with measurements of the body's total protein stores. This anthropometric measurement is often used as an indicator of nutritional status, particularly protein reserves such as muscle mass. Skinfold thickness can provide information about body fat levels, while height and weight may not specifically indicate protein stores as accurately as upper arm circumference.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: B

Rationale: The majority of lumbar disc herniations occur at the level of L4-L5. This is because the L4-L5 disc segment bears the highest amount of stress and load in the lumbar spine due to its location and mechanics. The intervertebral disc between the fourth (L4) and fifth (L5) lumbar vertebrae is subject to repetitive movements and mechanical stress, making it more susceptible to herniation compared to other levels in the lumbar spine. Additionally, the anatomy of the L4-L5 disc makes it more prone to degeneration and herniation, leading to a higher prevalence of herniated discs at this level.

Correct Answer: C

Rationale: Nurse Max would monitor the infant's weight to evaluate the effectiveness of thickened feedings for gastroesophageal reflux (GER). Weight monitoring is crucial because it can indicate if the infant is gaining, maintaining, or losing weight, which can be reflective of how well they are tolerating the thickened feedings. An increase in weight would suggest that the infant is receiving adequate nutrition and that the thickened feedings are effective in managing GER symptoms. Monitoring weight can also help assess if the infant's overall growth and development are progressing appropriately in the context of their GER condition.

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: B

Rationale: One of the most frequent causes of hypovolemic shock in children is blood loss. Children are at risk for blood loss due to trauma, surgical procedures, gastrointestinal bleeding, or other conditions that result in significant blood volume reduction. Blood loss leads to a decrease in circulating blood volume, which in turn reduces tissue perfusion and oxygen delivery to vital organs. This results in hypovolemic shock, where the heart is unable to pump sufficient blood to meet the body's needs, leading to organ dysfunction and potentially life-threatening complications. Therefore, recognizing and addressing blood loss promptly is essential in managing hypovolemic shock in children.

Correct Answer: B

Rationale: The earliest age at which an infant typically begins teething with the eruption of their lower central incisors is around 6 months old. Teething typically starts around this age, but it can vary from one infant to another. It is important to note that while 6 months is a common age for teething to begin, some infants may start teething a little earlier or later. It's essential for parents to monitor their baby's development and seek guidance from healthcare professionals if needed.