Final answer:
The concerning vital sign in the newborn from the given options is 'a. Pulse 70 RR 36' because a pulse rate of 70 is lower than the normal range for a newborn, which is between 120 to 160 beats per minute, indicating the need for medical attention.
Step-by-step explanation:
In assessing the health of a newborn, the Apgar score is utilized to evaluate vital signs such as heart rate and respiration. These criteria, among others, are crucial for determining the baby's condition immediately after birth. When considering which of the following is a concerning vital sign in the newborn:
- Pulse 70, RR 36 (respiratory rate)
- Pulse 140, RR 48
a pulse rate of 70 beats per minute (option a) is notably low for a newborn, as typical newborn pulse rates are between 120 and 160 beats per minute. Therefore, option a is concerning and might indicate the need for medical intervention. On the other hand, a pulse rate of 140 (option b) is within normal range for a healthy newborn. Thus, the correct answer to the question is a. Pulse 70 RR 36.