A REACTION FOLLOWING ADMINISTRATION OF MACROAGGREGATED ALBUMIN (MAA) FOR A LUNG SCAN

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Abstract
A reaction was observed following the administration of macroaggregated albumin (MAA) for a nadionuclide perfusion lung scan in a patient with widespread tumor emboli to the lung. The reaction consisted of faintness, cyanosis, agitation, diaphoresis, tachypnea, a fall in blood pressure and engorged neck veins immediately after intravenous injection of the MAA. This response suggests that in some patients with pulmonary disease, the safety factor for the MAA lung scan may be decreased and suggestions are presented to minimize the hemodynamic hazards in such individuals.

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