PEA

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activity

 [ak-tiv´ĭ-te]
1. the quality or process of exerting energy or of accomplishing an effect.
2. a thermodynamic quantity that represents the effective concentration of a solute in a non-ideal solution. Symbol a.
3. the number of disintegrations per unit of a radioactive material. Symbol A.
4. the presence of recordable electrical energy in a nerve or muscle.
a's of daily living (ADL) activities that are necessary for daily care of oneself and independent community living. It includes using the toilet and grooming, dressing, and feeding oneself; independent community living includes driving, shopping, homemaking, care of family, work activities, and so on. See also self care, self care deficit, and self care assistance.(See accompanying table.)
deficient diversional activity a nursing diagnosis approved by the North American Nursing Diagnosis Association, defined as the experiencing by an individual of decreased stimulation from, interest in, or engagement in recreational or leisure activities. Formerly called diversional activity deficit. Possible causes include prolonged hospitalization or immobility at home, frequent and lengthy treatments such as renal dialysis, and a monotonous, nonstimulating environment. The patient usually gives subjective evidence that this condition exists by verbalizing a feeling of boredom or stating a desire for something to do or gives objective evidence by acting depressed or restless.

Nursing interventions that could be appropriate for diversional activity deficit include interviewing the patient to assess the current situation and to assist in developing plans for activities that provide interest and stimulation. These activities could include music, games, reading, handwork, or any other pastimes enjoyed by the patient. Patients may need assistance in identifying available resources and motivation to take advantage of the activities they provide.
enzyme activity the catalytic effect exerted by an enzyme, expressed as units per milligram of enzyme (specific activity) or molecules of substrate transformed per minute per molecule of enzyme (molecular activity).
malignant ventricular ectopic activity ventricular fibrillation or ventricular tachycardia with syncope, heart failure, myocardial ischemia, or hypotension.
optical activity the ability of a chemical compound to rotate the plane of polarization of plane-polarized light.
physical activity bodily movements, such as those accompanying activities of daily living.
pulseless electrical activity (PEA) continued electrical rhythmicity of the heart in the absence of effective mechanical function; it may be due to uncoupling of ventricular muscle contraction from electrical activity or may be secondary to cardiac damage with respiratory failure and cessation of cardiac venous return. Called also electromechanical dissociation.
purposeful activity in occupational therapy, tasks or experiences in which the individual actively participates that require and elicit coordination between the sensory, motor, cognitive, and psychological systems. Each person has a unique set of purposeful activities, influenced by his or her life roles, and, when doing one of them, directs attention to the task itself rather than to the internal processes involved. Activities may yield immediate results or may require sustained effort and repetition, and they may either represent new responses or be part of complex, longstanding patterns of behavior.
sustained rhythmic activity the continuous generation of action potentials within the heart in the absence of artificial or external stimulation.
triggered activity activity in which nondriven action potentials arise from afterpotentials that were caused by the previous action potential.

PEA

PEA

Abbreviation for pulseless electrical activity.
References in periodicals archive ?
Lastly, the use of an animated full swirl of toothpaste ought to be removed as well, as it is in direct conflict with the ADA's pea-sized recommendation.
The amount of toothpaste applied with the instruction to use a pea-sized amount of paste for 28 children aged 4048 months was also investigated by Levy and co-workers [2000].
Dethier contrasts this exhibition with Britain's own Millennium effort as manifested at the Dome, and he doesn't mince his words, either over the Dome itself ('Mr Universe with a pea-sized brain') or over the aim of the two celebrations.
Both abdomens are cleanly split and organs pried out for show, their pea-sized glands fixed in dark niches
Participants were randomized to higher- or lower-strength gel and instructed to apply a pea-sized amount of tazarotene to one side, and vehicle gel to the other side of their faces.
The Toolite shovel is perforated by hundreds of pea-sized holes that help break the suction between blade and muck.
The Toolite[TM] shovel is the only product of its kind on the market that has a blade filled with strategically placed pea-sized holes.
In addition, another set of vines was damaged early in the season (pea-sized berry) and late in the season (veraison) utilizing two naturally occurring foliar herbivores: the rose chafer, Macrodactylus subspinosus, and the Japanese beetle, Popillia japordca, respectively.
Encourage teenagers to apply three pea-sized dots at bedtime to the forehead, cheeks, and chin--avoiding the corners of their eyes, nostrils, and mouth.
Medics are keeping an eye on the pea-sized mass, lodged in the star's pituitary gland which secretes hormones controlling growth and reproduction.
Take the topping dough and crumble roughly into pea-sized lumps into a bowl with your hands.
A pea-sized amount detangles and defines, while moisturising, strengthening and providing an intense anti-frizz action.