Maternity NCLEX Questions Related

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The nurse observes a sinusoidal FHR pattern on the monitor tracing. How should the nurse interpret this pattern?

  • A. The fetus may be in a sleep state.
  • B. Congenital anomalies are possible.
  • C. This may indicate severe fetal anemia.
  • D. This predicts normal fetal well-being.
Correct Answer: C

Rationale: A sinusoidal pattern, which is Drag and Drop, smooth, undulating, and uncommon, classically occurs with severe fetal anemia as a result of abnormal perinatal conditions. An FHR pattern having minimal variability (not a sinusoidal pattern) might indicate that the fetus is in a sleep state. Absent or minimal variability, not a sinusoidal FHR pattern, could indicate possible congenital anomalies. Moderate variability of the FHR (not a sinusoidal pattern) reflects normal fetal well-being.