A nurse assesses a client who has experienced significant blood loss from a ruptured aneurysm. Which of the following findings would most likely indicate the client is experiencing hypovolemic shock?

Major burn injuries involving a significant total body surface area (TBSA) trigger a profound inflammatory response that leads to increased capillary permeability and massive fluid shifts from the intravascular space into the interstitial space. This results in hypovolemic shock if not promptly managed. Fluid resuscitation is therefore a critical early intervention to maintain tissue perfusion and organ function. Standardized formulas guide initial fluid replacement in burn management.

Rationale:
A. Starting IV vancomycin immediately to prevent infection is not the priority in the acute phase of burn management. Although infection prevention is important in burn care, fluid resuscitation takes precedence in the initial management to prevent hypovolemic shock. Antibiotics are not routinely given prophylactically unless there is evidence of infection.

B. Administering 4 mL of lactated Ringer’s solution IV per kg of body weight per TBSA is correct because it follows the Parkland formula for burn resuscitation. Parkland formula guides initial fluid replacement to restore circulating volume and maintain organ perfusion. Lactated Ringer’s is preferred because it closely resembles extracellular fluid and helps correct metabolic acidosis associated with burns.

C. Providing oral fluids until the client is stable is inappropriate for a client with a 20% TBSA burn. Oral intake is insufficient to meet the rapid and large fluid losses caused by capillary leakage in moderate to severe burns. Intravenous fluid resuscitation is required to prevent shock and maintain hemodynamic stability.

D. Waiting 24 hours before starting fluid resuscitation is dangerous and can result in severe hypovolemic shock and organ failure. Fluid resuscitation must begin immediately after burn assessment to counteract fluid shifts that occur within the first several hours. Delaying treatment significantly increases mortality risk in major burn injuries.

A Sengstaken-Blakemore tube is used as an emergency measure to control life-threatening bleeding from esophageal varices by applying direct pressure to bleeding sites using inflated gastric and esophageal balloons. This intervention carries significant risks, including airway obstruction, aspiration, and esophageal rupture. Because the tube is placed near the airway and upper gastrointestinal tract, maintaining airway patency and preventing aspiration are the highest priorities during care.

Rationale:
A. Assessing the client for respiratory distress and signs of aspiration is the most critical nursing action because inflation of the balloons can compress the airway and increase the risk of aspiration of blood or gastric contents. Any signs of dyspnea, hypoxia, or coughing may indicate airway compromise, which requires immediate intervention to prevent respiratory failure.

B. Confirming the lumens of the tube are properly labeled is important for correct management of the gastric and esophageal ports but is not the most urgent priority. While proper labeling helps ensure correct inflation and drainage, it does not address immediate life-threatening complications such as airway obstruction or aspiration.

C. Monitoring the gastric balloon pressure every hour is necessary to ensure the balloon is providing adequate tamponade without causing tissue damage or rupture. However, this is a secondary monitoring task compared to airway safety. Overinflation risks esophageal necrosis, but airway protection remains the primary concern.

D. Ensuring the client is in a supine position for comfort is incorrect because the supine position increases the risk of aspiration in a client with active upper gastrointestinal bleeding. The client should typically be positioned with the head elevated or in a lateral position to reduce aspiration risk and support airway protection.