A nurse is reinforcing teaching with a client scheduled for activated partial thromboplastin time (aPTT) testing. Which of the following statements made by the client indicates understanding of the teaching?

A. "This test shows if I am dehydrated." aPTT is not used to assess hydration status; it measures blood clotting ability. B. "This test measures deficiencies in clotting factors." aPTT assesses the intrinsic clotting pathway and helps evaluate clotting factor deficiencies, especially in conditions like hemophilia or when a client is on heparin therapy. C. "If my level is too low, I need to consume more sodium." Sodium intake does not directly impact aPTT values. D. "The aPTT is used to measure my sugar levels." Glucose levels are measured by a blood sugar test, not an aPTT test.