The Apgar score is based on which 5 parameters?.

The correct answer is choice C.

Choice A rationale:

While it’s true that breastfed infants may lose 5% to 10% of their birth weight in the first few days, this is not exclusive to breastfed infants.

Choice B rationale:

Formula-fed babies may gain weight more quickly than breastfed babies, but they do not typically show an increase in weight by day 3.

Choice C rationale:

Both formula-fed and breastfed newborns can lose 5% to 10% of their birth weight in the first few days.

Choice D rationale:

While formula-fed newborns may gain weight more quickly than breastfed newborns, they do not typically gain 3% to 5% of the initial birth weight in the first 48 hours.

The correct answer is choice D.

Choice A rationale:

Heart rate and respiratory effort are two of the five parameters of the Apgar score. However, this choice is incomplete as it does not include all five parameters.

Choice B rationale:

Temperature is not a parameter of the Apgar score. Tone is a parameter, but this choice is incomplete as it does not include all five parameters.

Choice C rationale:

Color is a parameter of the Apgar score. However, this choice is incomplete as it does not include all five parameters.

Choice D rationale:

The Apgar score is based on five parameters: heart rate, breaths per minute (respiratory effort), irritability (response to stimulation), tone (muscle tone), and color. Therefore, this choice is correct.