None. Plethysmography is a noninvasive diagnostic manometric study used to measure changes in the size of blood vessels by determining volume changes in the blood vessels of the eye, extremities, and neck or to measure gas volume changes in the lungs.
1. countable noun [usually with poss] A guardian is someone who has been legally appointed to look after the affairs of another person, for example a child or someone who is mentally ill. 2. countable noun. The guardian of something is someone who defends and protects it.
What is a Guardian ad Litem? A âguardian ad litemâ (GAL) is a person the court appoints to investigate what solutions would be in the âbest interests of a child.â Here, we are talking about a GAL in a divorce or parental rights and responsibilities case. The GAL will look into the family situation and advise the court on things like: