Robert is diagnosed with chronic acquired pure red cell aplasia. The main term is ________ and the correct code is ________.

When studied quantitatively, how will changes in pulse pressure throughout the respiratory cycle during a positive-pressure breath predict improvements in cardiac output?

A. The predictive value is minimal. B. The predictive value is not related at all to changes in pulse pressure. C. Changes in pulse pressure are equally predictive as left ventricular end-diastolic pressure. D. Changes in pulse pressure are better predictors than pulmonary artery wedge pressure.

____ is a localized swelling of the lips, tongue, or upper airway in response to specific antigenic stimuli.

A. Allergic reaction B. Angioedema C. Erythematosis D. Autoimmune response