Alveolar collapse can be prevented by applying continuous positive end-expiratory pressure and tidal volume should be decreased to limit pulmonary overdistention
17) It is thought that the antecedent to preterm delivery in multiples is uterine overdistention
sup] In a later animal study involving a large pleural effusion, when the P[sub]aw stress index >1, the CT scan showed significant amounts of alveolar collapse in the dependent lung area and no obvious overdistention
in the nondependent lung area.
While normally the pericardium exerts a mild containing force that somewhat prevents overdistention
of the cardiac chambers, in CP this extrinsic pressure is increased and most commonly transmitted uniformly to all cardiac chambers equalizing chamber pressures.
3 Moreover mechanical ventilation predisposed alveoli to both barotrauma and volutrauma which aggravated overdistention
of the friable alveoli.
This mode of ventilation provides small tidal volumes and high mean airway pressures that prevent both collapse and overdistention
of the alveoli, a key goal in ARDS treatment (Chan, Stewart, & Mehta, 2007).
The only complications were bradycardia, which responded to atropine, and overdistention
of the lung if the tube was too large.
Emphysema patients characteristically present with overdistention
, which produces the "barrel-chest" deformity.
If possible, the bed partner/roommate should be questioned about the patient's quantity and quality of sleep,s Accurate determination of the cause of sleep problems and consideration of associated medical conditions are important since, as an example, treatment with hypnotics may worsen breathing problems such as obstructive sleep apnea, cause ataxia during the night that leads to falls, or contribute to bladder overdistention
in patients with conditions that lead to urinary retention.
and ileus are contributing factors to aspiration and VAP; however, the use of the OG tube is not enough and frequent auscultation of bowel sounds and monitoring of gastric residuals will alert nurses to the presence of an ileus.
3) Protect the bladder against overdistention
(expansion) with an indwelling Foley catheter.
Avoid uterine overdistention
by using gravity feed rather than pump-delivered saline for input and output.