A 25-year-old presented to the labor and delivery unit with complaints of uterine cramping and lower back pain

QUESTION

A 25-year-old presented to the labor and delivery unit with complaints of uterine cramping and lower back pain. The client denied any vaginal bleeding and had a history of preterm birth at 32 weeks (about 7 and a half months) gestation with her last pregnancy. The baby from that pregnancy is three years old has no developmental issues. The client’s gestational age is 30 weeks (about 7 months). She is O+, and all other lab values are normal. No evidence of sexually transmitted infections (STI’s).

(Group Beta Strep is missing from the labs and most often is obtained at 35 – 37 weeks (about 8 and a half months) gestation. Without this information, it is often determined to treat the patient anyway, to protect a premature baby from the risk.)

• What additional information should the nurse obtain from the client?
• What nursing intervention is most appropriate in this situation?
• What screening tests should be obtained to determine the risk for preterm labor?
• If the client is in preterm labor, what medications would the nurse expect to be ordered, and what are the priorities for the nurse to assess post-administration? (Include dose, side effects and expected outcomes of the medication).

ANSWER

Additional Information to Obtain from the Client

The nurse should inquire about the frequency and duration of uterine cramping and lower back pain. Understanding the intensity and pattern of these symptoms can help determine the severity of the situation and guide appropriate interventions. Additionally, it is important to ask if the client has experienced any leakage of amniotic fluid or changes in fetal movements. Any history of recent infections or exposure to illnesses should also be explored as infections can increase the risk of preterm labor.

Most Appropriate Nursing Intervention

The most appropriate nursing intervention in this situation would be to perform a thorough assessment of the client’s vital signs, uterine contractions, and fetal heart rate. Continuous monitoring of the fetal heart rate can provide valuable information about the well-being of the baby and help identify signs of fetal distress or compromise.

Screening Tests for Preterm Labor Risk

To determine the risk for preterm labor, the nurse should request the measurement of the client’s cervical length through transvaginal ultrasound. A short cervix (less than 25 mm) is a significant predictor of preterm birth. Additionally, the nurse should review the client’s obstetric history, including any previous preterm births or cervical insufficiency.

Medications Expected for Preterm Labor

If the client is diagnosed with preterm labor, the nurse can expect the administration of tocolytic medications to suppress uterine contractions and delay labor. Commonly used tocolytics include:

Magnesium Sulfate: The usual dose is 4-6 grams IV loading dose over 20 minutes, followed by a maintenance infusion of 2-3 grams per hour. Side effects may include flushing, nausea, headache, and hypotension. The nurse should closely monitor the client’s deep tendon reflexes and respiratory rate, as magnesium toxicity can lead to respiratory depression and decreased reflexes.

Terbutaline: It is usually given subcutaneously at a dose of 0.25 mg every 20 minutes for up to three doses. Side effects may include tachycardia, tremors, and anxiety. The nurse should monitor the client’s heart rate and blood pressure closely.

Indomethacin: The usual dose is 50 mg rectally, followed by 25-50 mg every 6 hours as needed for a maximum of 48 hours. Side effects may include gastrointestinal upset and decreased renal blood flow. The nurse should monitor the client’s renal function and assess for signs of bleeding.

Priorities for Nurse Post-Administration

After administering tocolytic medications, the nurse’s priorities include continuous monitoring of the client’s vital signs, uterine contractions, and fetal heart rate. The nurse should also assess for any adverse reactions to the medications, such as hypotension, tachycardia, or respiratory distress. Monitoring for signs of magnesium toxicity or indomethacin-related side effects is crucial. Additionally, the nurse should provide emotional support and education to the client and her family regarding the importance of adhering to bed rest and other measures to prevent further preterm labor.