➤ Why do laboratory tests and biomarkers matter when predicting assessment results for a suspected diagnosis?
Laboratory tests provide objective evidence of underlying pathophysiology. Expect CBC for infection or anemia, electrolytes for metabolic disturbances, troponin for myocardial injury, ABG or lactate for hypoxia or shock, and cultures for sepsis. Abnormal labs narrow differential, stage severity, and guide immediate treatment decisions.
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