An 18-Year-Old Primigravida Is 4 Cm Dilated and Her Contractions

An 18-year-old primigravida is 4 cm dilated and her contractions are 5 minutes apart. She received little prenatal care. She had no childbirth preparation. She is crying loudly and shouting, "Please give me something for the pain. I can't take the pain." What is the priority nursing diagnosis?

A) Pain related to uterine contractions
B) Knowledge deficit related to the birth experience
C) Ineffective coping related to inadequate preparation for labor
D) Risk for injury related to lack of prenatal care