# A 65-year-old patient presents to the emergency department with severe headache, blurred vision, and blood pressure of 230/120 mmHg. Which assessment finding would be most concerning and require immediate intervention?

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> subject: Adult Health

## 문제

A 65-year-old patient presents to the emergency department with severe headache, blurred vision, and blood pressure of 230/120 mmHg. Which assessment finding would be most concerning and require immediate intervention?

## 보기

1. Papilledema on fundoscopic examination **✔ 정답**
2. Nausea with vomiting episodes
3. Chest pain rated six out of ten
4. Anxiety with restlessness noted

**정답: 1**

## 해설

Papilledema indicates increased intracranial pressure and potential brain damage, requiring immediate intervention in hypertensive crisis. Other symptoms like nausea, chest pain, or anxiety are concerning but less urgent.

## 심화 해설

Clinical Reasoning Analysis

This patient presents with a blood pressure of 230/120 mmHg and neurological symptoms, meeting the criteria for a hypertensive emergency. The immediate priority is to identify findings indicating target organ damage, specifically involving the brain, heart, or kidneys. In this scenario, the most concerning assessment finding is papilledema, as it provides direct evidence of cerebral injury and increased intracranial pressure.

Pathophysiology and Clinical Significance of Papilledema

In the context of severely elevated blood pressure, the cerebral autoregulatory mechanisms fail. Normally, cerebral blood vessels constrict to maintain constant perfusion. However, when blood pressure exceeds the upper limit of autoregulation, the vessels dilate passively. This leads to a breakdown of the blood-brain barrier, allowing fluid and proteins to leak into the brain parenchyma, a condition known as hypertensive encephalopathy (HE) [1]. The optic nerve is an extension of the central nervous system, and its sheath is continuous with the subarachnoid space. Increased intracranial pressure from cerebral edema is transmitted to the optic nerve head, causing it to swell, which is visualized on fundoscopic examination as papilledema. This finding is a hallmark of posterior reversible encephalopathy syndrome (PRES), a severe manifestation of HE that can be identified on MRI [4]. The presence of papilledema signals that the patient is at imminent risk for irreversible neurological injury, including seizures, cortical blindness, or coma, if the blood pressure is not rapidly and carefully controlled [1,4].

Analysis of Other Options

- Option 2: Nausea with vomiting episodes. While nausea and vomiting are common symptoms of increased intracranial pressure and can accompany HE, they are non-specific. They do not provide the same level of direct, objective evidence of ongoing cerebral edema and elevated intracranial pressure as papilledema does.

- Option 3: Chest pain rated six out of ten. Chest pain in a hypertensive emergency is a critical finding that could indicate acute coronary syndrome or aortic dissection. While this requires prompt evaluation, the question stem asks for the finding most concerning in the context of the patient’s primary neurological presentation (severe headache, blurred vision). Papilledema confirms the neurological threat, which is the most immediate life-altering risk in this scenario.

- Option 4: Anxiety with restlessness noted. Anxiety and restlessness are non-specific sympathetic responses to a high catecholamine state and the distressing situation. While important to note, they do not represent a direct sign of end-organ damage and are the least concerning of the listed options.

NCLEX-RN Priority Setting Concept

This question tests the nursing principle of prioritizing assessment findings based on their indication of acute, life-threatening pathology. The nurse must distinguish between symptoms and objective signs of end-organ damage. A fundoscopic exam revealing papilledema is a definitive, objective sign of cerebral injury that demands immediate notification of the provider and preparation for rapid, controlled blood pressure reduction. Untreated HE can lead to serious complications, but prompt treatment often results in full neurological recovery [1]. The predictive factors for developing HE are still being investigated, but the clinical presentation of severe hypertension plus neurological signs is the primary driver for urgent intervention . The underlying mechanisms involve a complex cascade, with recent research exploring the role of specific circulating cytokines in the inflammatory process of the disease .References (research sources)

- [1]Clinical characteristics and outcomes of children with hypertensive encephalopathy.Research articleWiraboonchai B, Khongkhatithum C, Nimkarn N, Chantarogh S, Saisawat P, Tangnararatchakit K, Pirojsakul K. (2025) · DOI: 10.1186/s12887-025-05909-w

- [4]Seizure in a Seven-Year-Old With Hypertensive Encephalopathy: A Report of a Rare Case.Research articleMirza DJ, Hossain MR, Baig MF. (2025) · DOI: 10.7759/cureus.92980

## 임상 시나리오

Hypertensive Emergency TriagePrioritizing Cerebral Target-Organ Damage
In a patient with 230/120 mmHg and neurological symptoms, the priority is identifying acute target-organ damage. Papilledema on fundoscopic exam is a critical sign of cerebral edema and increased intracranial pressure, indicating hypertensive encephalopathy.

This finding reflects failure of cerebral autoregulation and breakdown of the blood-brain barrier. It demands immediate IV antihypertensive therapy to prevent irreversible brain injury or herniation.

CautionDo not delay treatment for CT scans. Fundoscopic exam is a rapid bedside tool. Lowering BP too quickly can cause cerebral ischemia; aim for a controlled 25% reduction in mean arterial pressure within the first hour.

## 핵심 개념

- **Papilledema** — Optic disc swelling due to increased intracranial pressure, a sign of hypertensive encephalopathy.
- **Hypertensive Emergency** — Severe BP elevation (often >180/120 mmHg) with evidence of acute target-organ damage (brain, heart, kidneys).
- **Cerebral Autoregulation** — The brain's ability to maintain constant blood flow despite changes in systemic BP; fails at extreme pressures, leading to edema.
- **Hypertensive Encephalopathy** — A syndrome of cerebral dysfunction caused by malignant hypertension, characterized by headache, confusion, and papilledema.
- **PRES** — Posterior Reversible Encephalopathy Syndrome, a clinicoradiological diagnosis often presenting with headache, seizures, and visual loss.

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