A 28-year-old primigravida at 32 weeks gestation presents for a routine prenatal visit. Which assessment finding would be most concerning and require immediate further evaluation?
1Blood pressure of 110/70 mmHg with no previous history of hypertension
2Fundal height measuring 28 cm at 32 weeks gestation with decreased fetal movement✓ 정답
3Mild dependent edema in both ankles at the end of the day
4Complaint of occasional heartburn and shortness of breath when lying flat
해설
Fundal height of 28 cm at 32 weeks with decreased fetal movement indicates IUGR or oligohydramnios, requiring immediate evaluation. Other findings are normal or expected in pregnancy.
Core Nursing ExplanationKey Concept Analysis: This question assesses the nurse's ability to identify a priority finding indicating potential fetal compromise in the third trimester. The core theme is recognizing deviations from normal pregnancy progression that signal immediate danger to the fetus, specifically Intrauterine Growth Restriction (IUGR) or Oligohydramnios. Normal fundal height in centimeters roughly equals the gestational age in weeks from 20 to 34 weeks (±2 cm is considered normal variation). A fundal height of 28 cm at 32 weeks is significantly less than expected, suggesting the fetus may not be growing appropriately. When combined with the subjective finding of decreased fetal movement, it becomes a critical red flag requiring urgent assessment (e.g., Non-Stress Test (NST), Biophysical Profile (BPP), ultrasound) to evaluate fetal well-being.
Answer Rationale: Key Point! The combination of fundal height lagging behind dates and decreased fetal movement is the most concerning finding. It directly points to potential uteroplacental insufficiency, where the placenta is not delivering adequate oxygen and nutrients to the fetus. This can lead to fetal hypoxia, acidosis, and even stillbirth if not promptly evaluated and managed. Immediate nursing actions include notifying the provider, initiating fetal monitoring, and preparing for possible further diagnostic tests or intervention.
Distractor Analysis:
Watch out for confusion! Option ①: A blood pressure of 110/70 mmHg is within the normal range for pregnancy. While hypertension is a key sign of preeclampsia, this reading alone, with no history, is not concerning.
Option ③: Mild dependent edema in the ankles at the end of the day is a common, expected finding in the third trimester due to increased venous pressure from the gravid uterus and hormonal changes. It becomes concerning only if it is sudden, severe, involves the face/hands, or is accompanied by hypertension and proteinuria (signs of preeclampsia).
Option ④: Heartburn (pyrosis) and shortness of breath when lying flat (dyspnea) are common discomforts of late pregnancy. Heartburn is due to relaxed lower esophageal sphincter and uterine pressure on the stomach. Shortness of breath is due to uterine pressure on the diaphragm. These are typical, not emergent, findings.
Related Concepts: This scenario integrates knowledge of normal prenatal assessment, danger signs in pregnancy, and fetal surveillance. The nurse must differentiate between normal physiologic adaptations and pathological signs. Other concerning findings in the third trimester include vaginal bleeding, severe/persistent headache, visual disturbances, epigastric pain, and rupture of membranes before term.
Concept Summary
Concept
Description
Nursing Implication
Fundal Height Measurement
Assessed from symphysis pubis to top of uterus (fundus). Should correlate with gestational age (GA) in weeks (±2 cm from 20-34 wks).
A lag of >3 cm suggests IUGR; a lead suggests macrosomia or multiples. Requires ultrasound confirmation.
Decreased Fetal Movement
Subjective reduction in mother's perception of fetal kicks/rolls. A key indicator of fetal well-being.
Teach "kick counts." Report any significant decrease immediately. Triggers evaluation with NST/BPP.
Intrauterine Growth Restriction (IUGR)
Fetal weight <10th percentile for GA. Can be symmetric or asymmetric. Often due to placental insufficiency.
Requires close monitoring (serial ultrasounds, Doppler flow studies). May necessitate early delivery.
Normal Pregnancy Discomforts (3rd Trimester)
Includes ankle edema, heartburn, backache, dyspnea, frequent urination. Caused by physiologic changes.
Nurse provides education on non-pharmacologic relief (e.g., elevation, small frequent meals, good posture).
Side-by-Side Comparison!
Assessment Finding
Normal in Pregnancy (Not Concerning)
Abnormal / Concerning in Pregnancy
Edema
Mild, dependent (ankles/feet), worse at end of day, pits but resolves with elevation.
Sudden onset, severe, in face/hands (facial edema), does not resolve with rest, accompanied by hypertension/proteinuria.
Fundal Height
Matches gestational age in weeks (±2 cm).
Significant lag (>3 cm behind dates) or lead (>3 cm ahead).
Fetal Movement
Active, regular pattern perceived by mother. "Kick counts" are reassuring.
Marked decrease or cessation of movement. Mother reports "baby isn't moving as much."
Blood Pressure
Stable, may have slight decrease in 2nd trimester, returns to baseline in 3rd.
Sustained elevation: BP ≥140/90 mmHg on two occasions >4 hrs apart. A sign of gestational hypertension/preeclampsia.
Anatomy, Physiology & Pharmacology Points
Pathophysiology of IUGR: Often results from uteroplacental insufficiency. The placenta fails to provide adequate oxygen/nutrients, leading to fetal hypoxia. The fetus redirects blood flow to vital organs (brain, heart), causing asymmetric growth (head spared, abdomen small).
Fundal Height Physiology: The uterus grows predictably as the fetus and amniotic fluid increase. Amniotic fluid volume is a key component. Oligohydramnios (low amniotic fluid) can also cause a low fundal height measurement and is associated with poor fetal outcomes and cord compression.
Fetal Movement: A healthy, well-oxygenated fetus is active. Decreased movement is a late sign of fetal compromise, as the fetus conserves energy and oxygen in a hypoxic state.
Memory Tips
Fundal Height Rule: "Centimeters equal weeks, give or take two." From 20 to 34 weeks, it's a quick bedside check.
Priority Acronym: Think "Fundal height + Fetal movement = Find out Fast!" When these two are abnormal together, it's an urgent situation.
Edema: "Dependent is expected, facial is fatal." (Facial edema is a red flag for preeclampsia).
High-Frequency NCLEX Topics
This integrates several high-yield NCLEX areas: Maternal Assessment, Identifying Complications of Pregnancy, and Priority Setting. The NCLEX loves to test your ability to sift through multiple data points (vital signs, physical findings, patient complaints) and identify the one that represents the greatest immediate threat to the mother or fetus. Always ask yourself: "Which finding, if ignored, could lead to the worst outcome in the shortest time?"
Watch Out for Question Variations!
Shift from Symptom to Intervention: "The nurse notes a fundal height of 28 cm at 32 weeks with decreased fetal movement. What is the nurse's priority action?" (Answer: Notify the healthcare provider and initiate fetal monitoring).
Shift to Patient Education: "The nurse is teaching a prenatal class. Which statement by a client indicates understanding of when to call the provider?" (Correct response would be about reporting decreased fetal movement).
Adding Lab Data: The scenario could include normal vs. abnormal biophysical profile (BPP) or Non-Stress Test (NST) results, requiring you to interpret them in conjunction with the physical findings.
Nursing Clinical Practice GuideClinical Scenario: You are the nurse in a busy OB/GYN clinic. Maria, a 28-year-old first-time mother at 32 weeks, comes for her check-up. She mentions, "You know, I haven't felt the baby kick as much the past two days. I thought maybe he's just sleepy." During your assessment, you measure her fundal height at 28 cm. Her blood pressure is 118/72, and she has slight ankle edema.
Nursing Intervention Strategy:
Immediate Assessment & Communication: Your first action is to acknowledge her concern and act on it immediately. Do not dismiss it. Document the exact fundal height and her statement verbatim. Notify the provider or midwife right away while the patient is still in the clinic.
Initiate Fetal Surveillance: The provider will likely order an immediate Non-Stress Test (NST). Your role is to explain the procedure to Maria, apply the monitors, and obtain a 20-minute tracing. You are assessing for accelerations with fetal movement (a reassuring sign) and the absence of late decelerations (a non-reassuring sign).
Comprehensive Evaluation:
Ultrasound: Prepare Maria for a possible stat ultrasound to measure amniotic fluid index (AFI) and estimate fetal weight (EFW).
Kick Counts: Reinforce teaching on formal "kick counts": "Lie on your side after a meal and count movements. You should feel at least 10 movements in 2 hours. If not, call us immediately."
Support & Education: Stay calm and supportive. Explain that these tests are precautionary to ensure the baby is doing well. Avoid causing unnecessary panic but emphasize the importance of monitoring.
Patient Safety and Precautions:
Never Delay: Decreased fetal movement is a Key Point! late sign of distress. Waiting until the next scheduled appointment is not an option.
Documentation: Chart meticulously: "Fundal height 28 cm, 4 cm less than expected GA of 32 weeks. Patient reports subjective decrease in fetal movement over 48 hrs. Provider notified, NST ordered."
Follow-up: Ensure a clear plan is in place before the patient leaves. This may include daily NSTs, twice-weekly BPPs, or scheduling a follow-up ultrasound in a few days.
Nursing Procedure & Medication FlowProcedure: Performing a Non-Stress Test (NST)
Explain the procedure to the patient. Have her empty her bladder.
Position her in a semi-Fowler's or lateral tilt position to prevent supine hypotension.
Apply two transducers to the abdomen: one over the fetal back to monitor the fetal heart rate (FHR), and one at the fundus to monitor uterine contractions (toco).
Give the patient an event marker button to press each time she feels fetal movement.
Monitor the tracing for 20 minutes. A reactive NST (reassuring) shows two or more FHR accelerations of at least 15 bpm for 15 seconds within the 20-minute period.
A non-reactive NST requires further evaluation (e.g., vibroacoustic stimulation or a Biophysical Profile).
Medication Considerations: In cases of confirmed IUGR due to placental insufficiency, the focus is on monitoring, not medication. However, if preeclampsia is also suspected (not in this case), antihypertensives like labetalol or nifedipine may be used, and magnesium sulfate may be given for seizure prophylaxis. Always verify the indication and monitor for maternal side effects (e.g., hypotension, flushing) and fetal heart rate changes.
A Word from Your Senior Nurse
"Trust the mother's instinct. When a pregnant person says they feel less movement, listen. You are their advocate. In clinical practice, catching something like IUGR early can mean the difference between scheduling a controlled, early delivery and managing a true fetal emergency. For the NCLEX, remember that questions about pregnancy often test your ability to separate the 'normal uncomfortable' from the 'abnormal dangerous.' Always prioritize findings that directly impact the oxygen supply to the fetus—because without oxygen, nothing else matters. You've got this!"