Answer:
The correct answer is - serum creatinine.
Explanation:
A creatinine blood test or serum creatinine test measures the creatinine level in the blood. When creatine, present in muscles breaks down waste product forms. This waste product is known as creatinine.
Serum creatinine level can provide the nurse with a general idea about how well your kidneys are working which can also tell that if any endocrine disorder causing elevation of serum creatinine.
Thus, the correct answer is - serum creatinine.