Which term describes a serum sample that is cloudy in appearance?

The peripheral blood smear contains a normocytic, normochromic morphology with marked reticulocytosis. The hemoglobin solubility test is positive. What confirmatory test should follow?

a. Bilirubin analysis b. Haptoglobin analysis c. Hemoglobin electrophoresis d. Bone marrow aspiration

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.