vascular bed การใช้

• The Duffy antigen is present in the normal pulmonary vascular bed.
• Detection may stem from a bruit being present over the affected vascular bed during a physical assessment.
• The surgery can change pressure in that vascular bed, which may shunt more blood into other abnormal capillary areas.
• When the damage is widespread and prolonged, this hypoxia-mediated vasoconstriction occurs across a large portion of the pulmonary vascular bed.
• Over time this may lead to an Eisenmenger's syndrome the original VSD operating with a left-to-right shunt, now becomes a right-to-left shunt because of the increased pressures in the pulmonary vascular bed.
• Venogram will show " feathering " into the vascular bed beneath the lamellae, and there will be decreased or absent contrast material in the area distal to the apex of the coffin bone.
• In both cases, an independent technique is required to provide calibration of continuous " Q " analysis because arterial PP analysis cannot account for unmeasured variables such as the changing compliance of the vascular bed.
• If the PDA is moderate or large, widened pulse pressure and bounding peripheral pulses are frequently present, reflecting increased left ventricular stroke volume and diastolic run-off of blood into the ( initially lower-resistance ) pulmonary vascular bed.