Final answer:
Decreased plasma colloid osmotic pressure can lead to increased water retention in the plasma and decreased protein levels in the plasma.
Step-by-step explanation:
Decreased plasma colloid osmotic pressure can have several effects on the body. One of these effects is increased water retention in the plasma. When colloid osmotic pressure decreases, there is less attraction for water molecules, resulting in water accumulating in the plasma. This can lead to an increase in blood volume and blood pressure.
Decreased plasma colloid osmotic pressure can also cause decreased protein levels in the plasma. Proteins, such as albumin, contribute to the colloid osmotic pressure and help retain water in the plasma. When the protein levels decrease, the ability to retain water decreases as well.