What is your general approach for investigation / workup of adults with unintentional weight loss?

Which of the following do you include in your initial workup of adults with unintentional weight loss?

• Assess for sx of malignancy
• Depression screening
• Medication review
• CBC, CMP, TSH, A1c%
• Malnutrition assessment with a validated tool
• Assess for social isolation
• Fecal occult blood testing
• CXR
• Other