diagnostic peritoneal aspirate
Modified version of diagnostic peritoneal lavage using only aspiration to detect intraperitoneal bleeding in trauma patients.
Full Definition
Diagnostic peritoneal aspirate (DPA) is a simplified version of diagnostic peritoneal lavage that involves only the aspiration component without instillation of saline. A catheter is inserted into the peritoneal cavity through a small incision, and fluid is aspirated to detect the presence of blood, indicating possible intraabdominal injury. This technique is particularly useful in resource-limited settings or when CT scanning is unavailable. A positive aspirate (grossly bloody fluid or >10 mL of blood) suggests significant intraabdominal hemorrhage requiring surgical intervention. DPA maintains the diagnostic utility of full peritoneal lavage while being faster and requiring fewer resources.
Usage
Usage note: Document the volume and character of aspirated fluid for surgical decision-making.
In Context
- "A diagnostic peritoneal aspirate was performed given the patient's unstable condition and unavailable CT scanner." — Emergency surgery procedure note
- "The diagnostic peritoneal aspirate returned grossly bloody fluid, prompting immediate surgical exploration." — Trauma evaluation report