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1. dysequilibrium (def. 2).
2. lack of balance; especially lack of balance between muscles, as in insufficiency of ocular muscles.
autonomic imbalance defective coordination between the sympathetic and parasympathetic nervous systems, especially with respect to vasomotor activities.
electrolyte imbalance serum concentrations of an electrolyte that are either higher or lower than normal; see discussion and table under electrolyte.
fluid volume imbalance abnormally decreased or increased fluid volume or rapid shift from one compartment of body fluid to another. See also deficient fluid volume and excess fluid volume.
risk for fluid volume imbalance a nursing diagnosis accepted by the North American Nursing Diagnosis Association, defined as being at risk for a decrease, increase, or rapid shift from one to the other of intravascular, interstitial, and/or intracellular fluid; this refers to body fluid loss, gain, or both. See also deficient fluid volume and excess fluid volume.
sympathetic imbalance vagotonia.
vasomotor imbalance autonomic imbalance.
Archaic designation for a condition in which the parasympathetic autonomic system is reputedly overactive.
[vago- + G. tonos, strain]