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. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Pediatr Nephrol. 2015 Nov 16;31(5):853–860. doi: 10.1007/s00467-015-3259-3

FIGURE 1. Pre-filter Continuous Veno-Venous Hemofiltration.

FIGURE 1

Continuous veno-venous hemofiltration (CVVH) using the Aquadex™ machine. Heparin is infused through a y-connector attached to the withdraw (access) line of the patient’s catheter. Using an in-line medication infusion machine, pre-replacement fluid is infused via the proximal pigtail of the circuit. There are two pumps on the machine, the blood pump (which can pump blood to a maximum of 40 mL/min), and the ultrafiltration pump (which can perform ultrafiltration to a maximum of 500 mL/h when the blood flow is 40 mL/min). Blood for anticoagulation monitoring is obtained through the distal pigtail of the circuit. A blood warmer is attached to the tubing on the infusion (return) line before it is returned to the patient.