After stabilization of a client admitted with shock secondary to severe GI bleeding, what is the primary nursing intervention?

• A. Monitor the peripheral pulses.
• B. Check the level of consciousness.
• C. Take a blood sample for laboratory tests.
• D. Control the bleeding with a pressure dressing.

Answer: (C)

Immediately after stabilization, drawing blood for laboratory studies is the most important nursing action because it provides the data needed to guide ongoing management of the shock from GI bleeding. Lab results quantify how much blood has been lost (hemoglobin and hematocrit), reveal ongoing bleeding and anemia trends, and show coagulation status (PT/INR, aPTT) to detect coagulopathy that could worsen bleeding. A type and crossmatch may be prepared for possible transfusion, and metabolic panels, renal function, electrolytes, and blood gases help assess perfusion effects, guide fluid therapy, and evaluate acid-base balance. This information directly influences decisions about transfusion, further interventions, and monitoring frequency. While checking pulses and level of consciousness are essential ongoing assessments, they don’t provide the actionable data needed to tailor therapy, and a pressure dressing is not applicable for an internal GI bleed. Lab data drives the next steps in care.