A client with end stage renal disease presents to the emergency department with severe fatigue, palpitations, and muscle weakness.
The electrocardiogram reveals peaked T waves and a widened QRS complex. Which treatment should the nurse anticipate?

Post-paracentesis complications require understanding fluid dynamics and infection risks. Rapid removal of ascitic fluid can cause massive fluid shifts, leading to circulatory collapse. Knowledge of sterile technique and hemodynamics is essential to differentiate between hypovolemia and peritonitis following the procedure.

Choice A rationale

Fluid overload would typically manifest as hypertension, neck vein distention, and crackles in the lungs. Tachycardia and hypotension are classic signs of volume depletion rather than an excess of fluid within the intravascular space following paracentesis.

Choice B rationale

While cardiac issues can cause hypotension, the specific context of post-paracentesis points toward volume shifts. Cardiac decompensation often involves fluid backup and pulmonary congestion, which does not align with the sudden loss of high volume peritoneal fluid.

Choice C rationale

Rapid removal of large volumes of ascitic fluid (often > 5 liters) causes shift from the intravascular space to the interstitium. This leads to decreased circulating volume, manifesting as tachycardia and hypotension (systolic < 90 mm Hg).

Choice D rationale

Peritonitis is a risk when the peritoneal cavity is punctured. Clinical signs include fever (normal range 36.5 to 37.5 degrees Celsius), abdominal pain, and tachycardia. Fever in this client suggests a potential inflammatory or infectious process.

Choice E rationale

Anxiety can cause tachycardia, but it rarely causes significant hypotension and fever. The nurse must prioritize physiological causes like fluid shifts or infection over psychological distress when vital signs are significantly altered after an invasive procedure.

The clinical scenarios involve oncological emergencies, acute neurological deficits, hepatic coagulopathy, and end of life ethics. Knowledge of vascular obstruction, cerebral perfusion, liver physiology, and therapeutic communication is required to identify life threatening complications and uphold patient autonomy in advanced illness.

Choice A rationale

Abdominal pain is not a primary manifestation of superior vena cava syndrome. This condition involves obstruction of blood flow through the superior vena cava, primarily affecting the upper body, head, and neck rather than the abdominal cavity or viscera.

Choice B rationale

Dyspnea occurs as the tumor or thrombus compresses the superior vena cava, leading to impaired venous return and pulmonary congestion. This increased venous pressure in the upper thoracic region compromises respiratory efficiency and necessitates urgent medical intervention for stabilization.

Choice C rationale

Decreased urine output is typically associated with renal failure or systemic hypovolemia rather than localized superior vena cava obstruction. While cardiac output might eventually drop, oliguria is not a classic diagnostic symptom used to confirm this specific oncological emergency.

Choice D rationale

Obstruction of the superior vena cava causes a significant increase in venous pressure above the heart. This backup of blood leads to visible engorgement of the jugular veins as the blood cannot return efficiently to the right atrium.

Choice E rationale

Edema in the upper extremities and face results from increased capillary hydrostatic pressure due to venous return blockage. Fluid shifts into the interstitial spaces of the head, neck, and arms, causing the characteristic swelling and puffiness seen.

Choice F rationale

Chest pain and shortness of breath arise from increased intrathoracic pressure and decreased cardiac preload. The physical mass causing the syndrome often occupies the mediastinal space, leading to localized discomfort and significant respiratory distress during the acute phase.