The moral and ethical obligations

An 18-year-old patient who is pregnant with her tint child_ The patient, who is now in her second trimester, did not plan the pregnancy but has decided to carry the child to term The rune is caring for under the advice of her mother. During a routine checkup; the mother pulls the nurse aside and expresses concern that her daughter has been drinking and smoking marijuana in recent months She would like the nurse to test the patient for evidence of these substances without telling the patient. Explain the moral and ethical obligations of the nurse in this scenario