Which of these is an alarming sign of pre-eclampsia?

Daman & Diu Staff Nurse - 2018

Obstetrics & Gynaecology

Medium

Appeared in: Daman & Diu Staff Nurse - 2018

Explanation

Deep tendon reflexes (DTRs) of 4+ indicate hyperreflexia, a sign of severe central nervous system (CNS) irritability.
This heightened CNS irritability is a critical warning sign of an impending eclamptic seizure, which is a life-threatening complication of pre-eclampsia.
Among the given options, hyperreflexia represents the most immediate threat to the patient, signaling that the seizure threshold is dangerously low.

Option A: Edema is a common and non-specific finding in normal pregnancy. It is no longer considered a primary diagnostic criterion or a reliable sign of pre-eclampsia severity.
Option B: While this blood pressure is hypertensive and diagnostic for pre-eclampsia, it does not meet the criteria for severe pre-eclampsia, which is defined by a blood pressure of 160/110 mmHg or higher.
Option D: Proteinuria is a diagnostic marker for pre-eclampsia, but current guidelines state that the degree of proteinuria does not reliably correlate with the severity of the disease or adverse outcomes.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Assessment of severe features in pre-eclampsia as background academic context rather than a clinical decision trigger.
A nurse identifying 4+ DTRs must recognize this as a critical finding and immediately initiate seizure precautions (e.g., padded side rails, quiet environment, readily available suction and oxygen).
This finding warrants prompt notification of the healthcare provider and preparation for the administration of intravenous magnesium sulfate to prevent seizures.
What if? If the patient with 4+ DTRs also complains of a severe, persistent headache and reports seeing spots (scotomata), the risk of an imminent eclamptic seizure is extremely high. This combination of symptoms often necessitates immediate action, including stabilization and expedited delivery, regardless of gestational age.

How to Approach the Question

First, identify the core concept of the question. It asks for the most alarming sign, which requires you to prioritize clinical findings based on the immediate risk they pose to the patient.
Analyze each option in the context of pre-eclampsia pathophysiology. Remember that the most feared, acute complication of pre-eclampsia is an eclamptic seizure.
Evaluate which of the signs points most directly to this life-threatening complication. Signs of central nervous system (CNS) irritability are direct precursors to seizures.
Compare the given values to the established criteria for severe disease. A BP of 150/90 mmHg is hypertensive but not 'severe' (which is ≥160/110 mmHg). Proteinuria +2 is diagnostic but not a severity marker. Edema +2 is non-specific.
Conclude that 4+ DTRs, as a direct clinical measure of severe CNS irritability, is the most alarming sign because it signals an impending seizure.

Concept Tested & Keywords

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E6 Medicine Harrison 22e Part 2 p. 1803-1805

E6 Obstetrics Williams p. 7-18