A client with carcinoma of the lung develops facial and neck edema, distended neck and chest wall veins, and dyspnea. Which oncologic emergency should the nurse suspect?

1. A

   Superior vena cava syndrome

2. B

   Spinal cord compression

3. C

   Tumor lysis syndrome

4. D

   Syndrome of inappropriate antidiuretic hormone secretion

Appeared in: NORCET-11 Mains

Explanation

• Superior Vena Cava Syndrome (SVCS) is a structural oncologic emergency caused by the obstruction of the superior vena cava.
• This obstruction impedes venous return from the head, neck, and upper extremities to the heart.
• The client's symptoms of facial/neck edema, distended neck/chest veins, and dyspnea are the hallmark clinical manifestations of this venous backup and congestion.
• Lung cancer is the most common malignant cause of SVCS, making it the most probable diagnosis in this clinical scenario.

Why Other Options Were Wrong

• Option B: Spinal cord compression presents with neurologic symptoms such as back pain, motor weakness, sensory loss, and bowel or bladder dysfunction, not with venous congestion of the face and neck.
• Option C: Tumor lysis syndrome is a metabolic emergency characterized by electrolyte imbalances (hyperkalemia, hyperphosphatemia, hyperuricemia) from rapid cell death. Symptoms include nausea, vomiting, lethargy, and cardiac arrhythmias.
• Option D: Syndrome of inappropriate antidiuretic hormone (SIADH) secretion causes water retention and dilutional hyponatremia. This leads to symptoms like headache, confusion, seizures, and generalized edema, not the localized upper-body venous distention seen in SVCS.

Related Visual

Clinical Relevance

• Nursing practice connection: Prioritize focused assessment, early escalation, and real-time monitoring when managing Recognition of signs and symptoms of oncologic emergencies, specifically Superior Vena Cava Syndrome (SVCS) in acute care settings.
• Early recognition of SVCS is a critical nursing responsibility, as it can progress to life-threatening airway obstruction (laryngeal edema) or cerebral edema.
• The nurse's priority actions include elevating the head of the bed to reduce pressure and administering oxygen, while preparing the patient for definitive treatment like radiation or chemotherapy.
• What if? If the patient also developed stridor and confusion, this would indicate severe laryngeal and cerebral edema, respectively. This constitutes a medical emergency requiring immediate intervention to secure the airway and reduce intracranial pressure.

How to Approach the Question

• First, analyze the patient's primary diagnosis: carcinoma of the lung. This immediately directs your thinking toward common complications of this disease.
• Next, carefully examine the cluster of symptoms presented: facial/neck edema, distended veins in the neck and chest, and dyspnea.
• Recognize that these symptoms all relate to impaired blood flow in the upper part of the body.
• Connect the pathophysiology: a tumor in the chest (from lung cancer) can easily press on major blood vessels.
• Evaluate the options based on this connection. SVCS is the only option that directly explains obstruction of a major vein in the chest, leading to this specific set of symptoms.
• Eliminate the other options by recalling their key features: spinal cord compression (neurological deficits), TLS (metabolic/electrolyte issues), and SIADH (fluid/sodium imbalance).

Concept Tested & Keywords

• Concept Tested: Recognition of signs and symptoms of oncologic emergencies, specifically Superior Vena Cava Syndrome (SVCS).
• Stem keywords: carcinoma of the lung, facial and neck edema, distended neck and chest wall veins, dyspnea, oncologic emergency
• Lead-in keywords: Which oncologic emergency
• Clinical cues: The combination of a lung cancer diagnosis with symptoms of upper body venous congestion is a classic presentation of SVCS.

Question ID

QGXJlCfMtwi2QqizORnF8D

Copy ID

Reference Book

E6 Medicine Harrison 22e Part 1 p. 626-628

E6 Nursing Brunner Adult Health 3SA Vol 2 Part 3 p. 77-79