Page 812 - ACCCN's Critical Care Nursing

G L O S S A R Y O F T E R M S 789

transplant. The surgical implantation of one or more organs and veno-venous (VV) circuit. A term describing the vascular
tissues from one human being to another. access cannulas or shunt and the associated tubing
Transplant Nurses Association (TNA). Formed to advance the necessary to carry blood in and out of the haemofilter
education of nurses and other health professionals involved in and the circulation.
the transplant process. venous air-trap. A device preventing the inadvertent pumping of air
Transplant Society of Australia and New Zealand (TSANZ). via the pump into the patient causing air embolism.
A body with, as members, scientists, doctors, transplant ventilator-associated pneumonia (VAP). A nosocomial pneumonia
coordinators and research students with an interest in all that develops in a patient mechanically ventilated for 48 hours
forms of transplantation. or more.
transpulmonary gradient (TPG). Mean pulmonary artery pressure ventricular assist device (VAD). Full or partial ventricular assistance
minus pulmonary artery wedge pressure. provided by implantation of an artificial heart.
trypsin. An enzyme that acts to degrade protein. It is also referred to volume-controlled ventilation. Where the tidal volume and rate of
as a proteolytic enzyme or proteinase. ventilation is set and controlled.
ultrafiltrate. The fluid produced during ultrafiltration. voluntary. Free of coercion, duress or undue inducement.
ultrafiltration. A process where plasma water is removed from warm ischaemia. Time taken from withdrawal of ventilation and
the circulation through a haemofilter, achieving body fluid or treatment: to the confirmation of death of a donation after cardiac
water loss. death (DCD) donor: to the commencement of infusion of cold
unconsciousness. A condition where a victim fails to respond to perfusion fluid and/or organ retrieval.
verbal or tactile stimuli. wet drowning. Aspiration of water or liquid into the lungs with
utilitarian. Ethical theory that presupposes that an action is right resultant pulmonary damage during a submersion incident.
if it achieves the greatest good for the greatest number of work of breathing. The term applied to the physical effort a patient
people. exerts to achieve spontaneous breathing. It is affected by lung
vascular access catheter. A device inserted into a central vein to compliance, chest wall resistance muscle wasting (intercostals and
allow blood to be pumped in and out of a filter. diaphragm) and/or fatigue, and the use of secondary muscles to
vasoactive. Causing vasoconstriction or dilation. aid breathing.
vasopressor. A substance that promotes vasoconstriction. younger child. A child 1–8 years of age.