Chronic fatigue syndrome presents with symptoms that closely mirror those of depression, autoimmune disorders, and various viral infections. These ove...

Step 1: Decode and Map the Passage

Part A: Create Passage Analysis Table

Part B: Provide Passage Architecture & Core Elements

Main Point: Chronic fatigue syndrome is difficult to diagnose because its symptoms overlap with other conditions, requiring extensive testing to determine it as the underlying cause.

Argument Flow: The passage establishes a problem (symptom overlap), explains the consequence (diagnostic difficulty), and describes the solution (comprehensive testing) needed to achieve a specific medical goal.

Step 2: Interpret the Question Precisely

What's being asked? We need to choose the word that best completes the sentence about what comprehensive testing and evaluation allows doctors to do with chronic fatigue syndrome.

What type of answer do we need? A verb that describes the medical action doctors take when they determine CFS is the underlying condition.

Any limiting keywords? None specified.

Step 3: Prethink the Answer

• The passage explains that CFS symptoms look like many other conditions, making diagnosis tricky
• When doctors do comprehensive testing and detailed evaluations, they're trying to figure out what's actually causing the patient's symptoms
• The blank needs a word that describes this process of determining or recognizing that CFS is the real problem
• The right answer should describe the action of recognizing, determining, or pinpointing CFS as the true underlying condition after ruling out other possibilities