Procedural Guidance Step 1, Part 4 Thoracentesis 1. What is the minimal interpleural distance considered to be safe to perform thoracentesis?* A. 5 mm B. 10-15 mm C. 20 mm D. 30 mm 2. The distance between the visceral and parietal pleural layers is called:* A. Interpleural distance B. Dynamic pleural distance C. Fluid distance D. Separation distance 3.When performing thoracentesis, the optimal angle of entry in relationship to the ribs is:* A. Perpendicular B. 45 degrees C. Parallel 4.In a supine position, the interpleural distance at the base of the lung greater than 50 mm corresponds to a pleural effusion greater than:* A. 50 mL B. 500 mL C. 1000 mL D. 1500 mL 5. T or F: When performing thoracentesis, the patient should not be moved in between ultrasound imaging and needle puncture when real time ultrasound is not used* A. True B. False
