Correct option is D
Sol. Tachypnea in a newborn is defined as a respiratory rate greater than 60 breaths per minute. Normal respiratory rate for a newborn ranges between 30-60 breaths per minute. If a newborn exhibits tachypnea, it may indicate respiratory distress, neonatal infections, transient tachypnea of the newborn (TTN), or congenital heart disease.
Explanation of Each Option:
· 80 breaths per minute: Incorrect; severe respiratory distress may exceed this rate but is not the diagnostic threshold.
· 30 breaths per minute: Incorrect; this is within the normal range for newborns.
· 40 breaths per minute: Incorrect; also within the normal range for newborns.
· 60 breaths per minute: Correct answer; tachypnea is diagnosed when the respiratory rate exceeds this value.