A 28-year-old gravida 2, para 1 client at 32 weeks gestation presents to the labor and delivery unit with complaints of lower back pain and pelvic pressure. Which assessment finding would be most concerning and require immediate intervention?
The nurse is assessing a client experiencing potential preterm labor at 32 weeks gestation.
1Braxton Hicks contractions occurring every 15-20 minutes
2Fetal heart rate of 140-150 beats per minute with good variability
3Cervical dilation of 3 cm with 80% effacement✓ 정답
4Mild lower back discomfort relieved by position changes
해설
Cervical dilation of 3 cm with 80% effacement at 32 weeks indicates true preterm labor requiring immediate intervention to prevent preterm birth. Other findings are less concerning as they may represent normal pregnancy variations or false labor.
Core Nursing ExplanationKey Concept Analysis: This question assesses the nurse's ability to differentiate between normal pregnancy discomforts and true Preterm labor (PTL). The core concept is recognizing the objective, measurable signs of cervical change that define true labor, which at 32 weeks poses a significant risk to the fetus. Preterm labor is diagnosed by regular uterine contractions and cervical change (dilation and/or effacement) before 37 weeks of gestation.
Answer Rationale: Key Point! Cervical dilation of 3 cm with 80% effacement is a definitive sign of true, progressive labor. At 32 weeks, this indicates active preterm labor requiring immediate intervention (e.g., tocolytic medications, corticosteroids for fetal lung maturity, and possibly magnesium sulfate for neuroprotection) to delay birth and improve neonatal outcomes. This finding is the most concerning because it shows the labor process has advanced beyond early, potentially stoppable, stages.
Distractor Analysis:
Watch out for confusion!Option 1 (Braxton Hicks contractions): These are irregular, practice contractions that do not cause cervical change. They are common and often resolve with hydration or rest.
Watch out for confusion!Option 2 (Normal Fetal Heart Rate): A reassuring fetal heart rate pattern is a positive sign, but it does not rule out the presence of preterm labor. The primary concern is the labor process itself.
Watch out for confusion!Option 4 (Mild, relievable back pain): This describes common third-trimester musculoskeletal discomfort. Pain that is relieved by position change is not characteristic of the persistent, progressive pain of true labor.
Related Concepts: The nursing priority is to assess for cervical change via sterile speculum or digital exam (if membranes are intact). Management focuses on stopping labor if safe for the mother and fetus, administering betamethasone to accelerate fetal lung maturity, and monitoring for signs of infection or fetal distress.
Concept Summary
Term
Definition & Significance
Preterm Labor (PTL)
Regular uterine contractions with cervical change occurring before 37 weeks gestation.
Cervical Effacement
Thinning and shortening of the cervix (expressed as a percentage). 80% is significant thinning.
Cervical Dilation
Opening of the cervical os (measured in cm). 3 cm indicates active labor has begun.
Braxton Hicks Contractions
Irregular, usually painless "practice" contractions that do not cause cervical change.
Tocolytic Therapy
Medications (e.g., nifedipine, terbutaline) used to suppress uterine contractions in PTL.
Side-by-Side Comparison!
Assessment Finding
True Preterm Labor
False Labor / Normal Discomfort
Contractions
Regular, increase in frequency/intensity, often in back.
Irregular (Braxton Hicks), do not intensify, often in front.
Cervical Change
Progressive dilation & effacement.
No change.
Pain Relief
Not relieved by hydration, rest, or position change.
Often relieved by hydration, rest, or position change.
Nursing Action
Immediate intervention: notify provider, monitor, prepare for tocolysis.
Reassurance, comfort measures, continued observation.
Anatomy, Physiology & Pharmacology Points
Physiology: True labor involves the release of prostaglandins and oxytocin, leading to coordinated uterine contractions that efface and dilate the cervix. At 32 weeks, the fetal lungs are immature; surfactant production is insufficient, leading to high risk for Respiratory Distress Syndrome (RDS).
Pharmacology: Betamethasone (a corticosteroid) is given to the mother to stimulate fetal lung maturity. Tocolytics (like nifedipine) work by blocking calcium channels in uterine muscle to relax it. Magnesium sulfate can be used for fetal neuroprotection against cerebral palsy in deliveries < 32 weeks.
PTL Red Flags: Use the mnemonic "Contractions + Cervical Change = Call the provider & Consider corticosteroids."
High-Frequency NCLEX Topics
This is a classic High Yield priority-setting question. The NCLEX-RN frequently tests the ability to distinguish normal pregnancy findings from complications requiring intervention. Always prioritize objective data (like cervical dilation) over subjective complaints (like pain description) when assessing for true labor.
Watch Out for Question Variations!
Shift from Assessment to Intervention: "The nurse confirms cervical dilation of 3 cm at 32 weeks. Which intervention should the nurse anticipate first?" (Answer: Administer betamethasone per protocol).
Shift to Medication Knowledge: "A client in preterm labor is receiving terbutaline. Which finding requires immediate nursing action?" (Answer: Maternal heart rate of 130 bpm - a sign of tachycardia, a common side effect).
Shift to Patient Education: "A client at 30 weeks is being discharged after ruled-out preterm labor. Which statement indicates effective teaching?" (Answer: "I will call if I have more than 4 contractions in an hour.").
Nursing Clinical Practice GuideClinical Scenario: You are the nurse in triage. Maria, 28, G2P1 at 32 weeks, states, "My back has been aching all day, and I feel a lot of pressure down low. It's different from my first pregnancy." She appears anxious. Your initial assessment reveals vital signs within normal limits.
Nursing Intervention Strategy:
Immediate Assessment: Place on external fetal monitor (tocodynamometer and ultrasound transducer). Confirm regular contractions every 5 minutes. Perform a sterile speculum exam per protocol to visually assess for dilation, pooling of fluid (ruptured membranes), and fern test. If membranes are intact, a digital exam may be performed by an advanced provider to confirm dilation/effacement.
Priority Actions: Upon finding 3 cm/80% effacement:
Notify the obstetric provider STAT.
Initiate IV access for fluids and potential medications.
Prepare for administration of Betamethasone (IM) to promote fetal lung maturity.
Anticipate orders for a tocolytic (e.g., nifedipine PO or terbutaline SQ) if no contraindications (e.g., hemorrhage, severe preeclampsia).
Ongoing Care & Monitoring: Continuously monitor contraction pattern, fetal heart rate (for signs of distress), and maternal response to tocolytics (vital signs, side effects like tachycardia, hypotension, pulmonary edema). Provide emotional support and clear explanations.
Patient Safety and Precautions:
Key Point! Do NOT attempt to stop labor if there are contraindications like fetal distress, severe preeclampsia, hemorrhage, or intrauterine infection. In these cases, the priority shifts to safe delivery.
Monitor closely for side effects of tocolytics: terbutaline can cause maternal tachycardia, tremors, hyperglycemia; nifedipine can cause hypotension, headache, flushing.
Assess for signs of Preterm Premature Rupture of Membranes (PPROM) (gush or trickle of fluid). If membranes are ruptured, the risk of infection (chorioamnionitis) increases, and management may change.
Nursing Point: Document administration time. Full effect takes about 24 hours, so delaying delivery for at least 48 hours is the goal.
Tocolytic Monitoring (e.g., Nifedipine):
Obtain baseline blood pressure and heart rate.
Administer initial dose as ordered (often a "loading dose").
Monitor BP and HR frequently (every 15-30 mins initially) for hypotension/tachycardia.
Assess lung sounds for crackles (sign of pulmonary edema, a rare but serious complication).
A Word from Your Senior Nurse
In obstetrics, time is of the essence, but so is accurate assessment. Never dismiss a pregnant person's concern about "feeling different." Your thorough assessment and ability to identify true cervical change is what triggers the life-saving cascade of interventions for a preterm baby. On the NCLEX and in practice, remember: Contractions + Cervical Change = True Labor = Action. You are the first line of defense in giving that baby more crucial time to develop.
Preterm Labor — Regular uterine contractions with cervical change (effacement and/or dilation) occurring before 37 weeks of gestation.
Cervical Effacement — The thinning and shortening of the cervix, expressed as a percentage (0% = thick, 100% = completely thin).
Tocolytic Therapy — Pharmacological treatment used to suppress uterine contractions in an attempt to delay preterm birth.
Betamethasone — A corticosteroid administered intramuscularly to the mother to accelerate fetal lung maturity when preterm birth is imminent.
Braxton Hicks Contractions — Irregular, usually painless uterine contractions that do not cause cervical change; considered "practice" contractions.