Final answer:
The nursing plan of care should A. administer terbutaline to suppress preterm labor, considering the potential risk of immature fetal lungs and Respiratory Distress Syndrome indicated by an L/S ratio of 1.4:1 and absent PG.
Step-by-step explanation:
Based on the information provided in the medical records, the nursing plan of care at 1800 for a client who is at 34 weeks of gestation should A. administer terbutaline.
The rationale behind this action is that the client has a documented Lecithin/sphingomyelin (L/S) ratio of 1.4:1 which suggests immature fetal lungs, and Phosphatidylglycerol (PG) is absent, indicating a risk of Respiratory Distress Syndrome (RDS) if delivered prematurely.
Terbutaline is a medication used to suppress preterm labor by relaxing the uterine muscles and decreasing the frequency and intensity of contractions, as mentioned in the Medication Administration Record.
The Progress Report indicates that the client is experiencing uterine contractions every 5 to 8 minutes, and thus, terbutaline is appropriate to help delay preterm labor.
It is also important to ensure continued fetal monitoring due to the uterine contractions and to assess the fetal response to treatment.