pulmonary vascular resistance the vascular resistance of the pulmonary circulation; the difference between the mean pulmonary arterial pressure and the left atrial filling pressure divided by the cardiac output. Called also total pulmonary vascular resistance.
Guardians Ad Litem can range from $200-$350 per hour. In some limited instances, you can find one to work on a pro bono basis. Check your county services or the clerk's office for a low fee or pro bono GAL. Also, your lawyer should be able to refer you to one.
Generally, courts appoint guardians ad litem to represent legal infants and adults who are actually or allegedly incapacitated. Courts most frequently appoint guardians ad litem in parents' disputes over  title=reference on custody target=_self>custody of their children.