A 3-month-old infant is at increased risk for developing anemia. The nurse would identify which principle contributing to this risk?

A) The infant is becoming more active.
B) There is an increase in intake of breast milk or formula.
C) The infant is unable to maintain an adequate iron intake.
D) A depletion of fetal hemoglobin occurs.

In which mechanism involving the experience of pain are endogenous opioids bound to opiate receptor sites?

A) Transduction
B) Transmission
C) Modulation
D) Perception