Final answer:
The expected outcome of a transfusion of one unit of packed cells is an increase in hemoglobin by 1 g/dl and an increase in hematocrit by 3%. Option C is correct. This transfusion specifically targets erythrocyte levels to correct anemia and does not significantly affect platelet counts.
Step-by-step explanation:
When a patient receives one unit of packed cells, the expected effect of the transfusion is mainly to increase the red blood cell count, which in turn increases both hemoglobin and hematocrit levels. The correct expected outcome for a transfusion of one unit of packed cells is typically an increase in hemoglobin by 1 g/dl and an increase in hematocrit by 3%. This increases the oxygen-carrying capacity of the blood. Platelets are not significantly affected by this type of transfusion as the focus is on the erythrocytes.
Therefore, the right answer to the question would be Option C: Increase in hemoglobin by 1 g/dl and increase in hematocrit by 3%. Transfusions do not typically increase platelet counts unless the transfusion is specifically for platelet-rich plasma. The effects on hemoglobin and hematocrit are more predictable in this context, while platelet count would only increase with a platelet transfusion, not with packed red blood cells. Packed cells are specifically concentrated with erythrocytes to help correct anemia and the associated symptoms.