Packed red blood cells consist of red blood cells that are separated from the rest of the blood components and are used for transfusion.
When the hemoglobin of a person falls below 70–80 g/L (7–8 g/dL), then the person is usually transfused with packedRBC.
In the given situation, the client has chronic kidney disease and congestive heart failure and as a result of this, the hemoglobin levels of the client has fallen down 6.5 g/dL (65 g/L) and thus, there is an immediate need for the provider to perform a transfusion of packed RBC of appropriate blood type as RBCs are a carrier of hemoglobin in the body.
C. The universe coalesced into one solar system after the Big Bang.
Explanation:
This is true because, since she is writing about Big Bang theory, she would have to include how the universe was able to expand to one solar system made up of different planetary bodies. This explanation would help someone reading her writeup to understand what the Big Bang theory is all about.