D. Trachea, is the answer.
The medical term that refers to a blood study that gives a direct measurement of the amount of thyroxin in the patients blood is the THYROXIN LEVEL
Alzheimer's disease is the most common cause of dementia.
The word dementia describes a set of symptoms that can include memory loss and difficulties with thinking, problem-solving and/or language. These symptoms occur when the brain is damaged by certain diseases, including Alzheimer's disease.
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