For term neonates weighing 3 to 10 kg on long-term TPN with normal organ function, what is the recommended daily selenium supplementation?

For term neonates weighing 3 to 10 kg on long-term TPN with normal organ function, what is the recommended daily selenium supplementation?

• A. 1 mcg/kg/day
• B. 2 mcg/kg/day
• C. 3 mcg/kg/day
• D. 4 mcg/kg/day

Answer: (B)

Selenium is needed for antioxidant enzymes, and in PN care for neonates the amount given is tailored to age and weight to meet needs without causing toxicity. For term neonates on long-term PN with normal organ function, about 2 mcg per kg per day is the appropriate maintenance dose. This provides adequate selenium for daily physiological needs—roughly 6 to 20 mcg daily for a 3 to 10 kg infant—without approaching levels that could lead to toxicity. A lower dose (1 mcg/kg/day) risks deficiency over time, while higher doses (3–4 mcg/kg/day) are typically reserved for preterm infants or those with high oxidative stress or specific high-risk conditions.

Selenium is needed for antioxidant enzymes, and in PN care for neonates the amount given is tailored to age and weight to meet needs without causing toxicity. For term neonates on long-term PN with normal organ function, about 2 mcg per kg per day is the appropriate maintenance dose. This provides adequate selenium for daily physiological needs—roughly 6 to 20 mcg daily for a 3 to 10 kg infant—without approaching levels that could lead to toxicity. A lower dose (1 mcg/kg/day) risks deficiency over time, while higher doses (3–4 mcg/kg/day) are typically reserved for preterm infants or those with high oxidative stress or specific high-risk conditions.