Final answer:
Substances that interfere with osmolality testing include high levels of bilirubin and the presence of hemolysis, which can cause inaccuracies in measuring the concentration of dissolved particles in urine.Therefore, the substances that interfere with osmolality testing are c) Bilirubin, Hemolysis.
Step-by-step explanation:
The question pertains to what substances might interfere with osmolality testing, a test measuring the concentration of dissolved particles, such as solutes, in urine. In the context of this testing, it is known that high levels of glucose and urea can affect the oncotic pressure, which refers to the osmotic pressure in the blood plasma contributed by proteins. This can lead to an unequal distribution of water and electrolytes, which in turn interferes with the measurement of osmolality. Similarly, an increased level of bilirubin and the presence of hemolysis, which is the breaking down of red blood cells, can also lead to inaccuracies in the osmolality test. Therefore, the substances that interfere with osmolality testing are c) Bilirubin, Hemolysis.