Sample Requirements:
Fasting preferred. SST tube.
Purpose:
Assesses kidney function, blood sugar, and electrolyte/acid-base balance.
High Levels:
Abnormalities depend on component (e.g., BUN, creatinine, glucose, calcium).
Low Levels:
Component-specific (e.g., hypoglycemia, hyponatremia).
Reference Range:
Component-based (e.g., Glucose: 70–99 mg/dL)