title: Method for automatic, continuous blood sampling with remote alarm for clogged catheters.
abstract: An inexpensive blood sampling system is described that includes a remote alarm triggered by a decrease in rate of blood withdrawal. Additional modifications include design of a reliable sampling catheter and of a method for quickly and atraumatically replacing clogged catheters. This system has been used to collect continuous, integrated blood samples every 15 min for up to 72 h from cows. The alarm system is also useful for monitoring any flow in which minimum rate is critical, e.g., for column chromatography.
mesh_terms: D000818:Animals; D001331:Automation; D001774:Blood Chemical Analysis / Q000662:veterinary; D001777:Blood Coagulation; D001800:Blood Specimen Collection / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D002408:Catheters, Indwelling / Q000662:veterinary*; D002417:Cattle / Q000097:blood*