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Multiple Choice

In an elderly trauma patient, a high index of suspicion for shock should begin when the systolic blood pressure is less than:**

In elderly trauma patients, shock can be present even when the systolic blood pressure isn’t severely low because baseline pressures are often higher and physiologic reserve is reduced. A SBP below 120 mmHg in this group is a sign that perfusion may be dropping relative to their usual baseline, prompting early recognition and rapid assessment for shock. Why this threshold fits: older adults commonly have hypertension and stiff arteries, so a drop from their usual levels can occur with significant hypoperfusion even if the reading isn’t in the classic “shock” range. Starting with concern for shock when SBP falls below 120 allows timely evaluation and intervention before further decompensation. Higher thresholds (like 150) would miss early deterioration, while lower thresholds (90 or 100) may be too late in this population where the baseline is often higher.

In elderly trauma patients, shock can be present even when the systolic blood pressure isn’t severely low because baseline pressures are often higher and physiologic reserve is reduced. A SBP below 120 mmHg in this group is a sign that perfusion may be dropping relative to their usual baseline, prompting early recognition and rapid assessment for shock.

Why this threshold fits: older adults commonly have hypertension and stiff arteries, so a drop from their usual levels can occur with significant hypoperfusion even if the reading isn’t in the classic “shock” range. Starting with concern for shock when SBP falls below 120 allows timely evaluation and intervention before further decompensation.

Higher thresholds (like 150) would miss early deterioration, while lower thresholds (90 or 100) may be too late in this population where the baseline is often higher.