## **Core Concept**
The question tests the understanding of pharmacological management of labour pain and potential side effects of narcotics. Narcotics can cause respiratory depression in both the mother and the newborn. A specific medication is used to counteract this effect.

## **Why the Correct Answer is Right**
Naloxone is an opioid receptor antagonist that can reverse opioid-induced respiratory depression. When narcotics are administered for pain relief during labour, there's a risk of respiratory depression in the newborn. Naloxone is specifically used to counteract this life-threatening side effect, making it a crucial drug to have available in the labour room.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is blank and does not provide a valid choice for consideration.
- **Option B:** This option is also blank and does not offer a viable alternative.
- **Option C:** Similarly, this option is blank and lacks relevance to the context of the question.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that naloxone is used to reverse opioid overdose effects, including respiratory depression. Its presence is critical when administering opioids during labour to ensure neonatal safety. A classic clinical scenario where this is particularly relevant is when a mother receives opioids for pain relief shortly before delivery.

## **Correct Answer:** . Naloxone.