Discuss pharmacological versus non-pharmacological nursing interventions used for pain management during labor and birth. List two different classifications of drugs used for pain relief during labor and birth, and include potential side effects of the drugs on the fetus. Also, describe two nursing interventions by the nurse to provide comfort during labor and birth that could be considered as non-pharmacological and the expected outcomes. 

with this please give four  References

plagiarism free 

This has to be done separate, please.

Discuss how the nursing interventions align with one of the six QSEN competencies and why?