Final answer:
When administering serum albumin to a client with ascites, the nurse can expect the concentration of albumin to decrease due to liver diseases. A decrease in albumin can lead to fluid retention and edema.
Step-by-step explanation:
When a nurse administers serum albumin intravenously to a client with ascites, they can expect the concentration of albumin to decrease. This is because ascites is often associated with liver diseases such as cirrhosis, which can cause a decrease in albumin levels. Albumin plays a crucial role in regulating water content and osmotic pressure in the tissues, so a decrease in albumin can lead to fluid retention and edema.