A nurse is caring for a postoperative patient who suddenly develops signs of hypovolemic shock. Which nursing intervention should be the nurse's FIRST priority?
A 60-year-old patient underwent hip replacement surgery 4 hours ago and is now showing signs of hypovolemic shock with blood pressure 80/50 mmHg, heart rate 120 bpm, weak pulse, cool clammy skin, and decreased urine output.
1Establish large-bore IV access and initiate fluid resuscitation✓ 정답
2Administer prescribed pain medication to reduce patient discomfort
3Place the patient in Trendelenburg position to improve venous return
4Obtain blood samples for laboratory analysis including CBC and electrolytes
해설
In hypovolemic shock, the priority is to restore circulating blood volume through fluid resuscitation via large-bore IV access to prevent cardiovascular collapse and organ failure.
Core Nursing ExplanationKey Concept Analysis: This question assesses the priority nursing intervention for a patient in hypovolemic shock. The core pathophysiology is an absolute loss of intravascular volume (e.g., from hemorrhage post-surgery), leading to decreased cardiac output, poor tissue perfusion, and cellular hypoxia. The nursing priority is to reverse this process immediately to prevent irreversible organ damage and death.
Answer Rationale: Key Point! The FIRST priority in hypovolemic shock is to restore circulating volume. Establishing large-bore IV access (e.g., two 18-gauge or larger catheters) is the critical first step to enable rapid fluid resuscitation with crystalloids (e.g., Normal Saline or Lactated Ringer's). This directly addresses the root cause—hypovolemia—and supports blood pressure and organ perfusion. This action aligns with the ABC (Airway, Breathing, Circulation) priority framework, where "Circulation" is paramount in this scenario.
Distractor Analysis:
Watch out for confusion! Option ② (Administer pain medication) is incorrect because analgesics, especially opioids, can cause vasodilation and further drop blood pressure, worsening the shock state. Pain management is important but is a secondary concern to life-threatening hypovolemia.
Option ③ (Place in Trendelenburg position) is an outdated and potentially harmful intervention. While it was once thought to improve venous return, it can actually impair pulmonary function and does not significantly improve cardiac output. The current standard is to keep the patient supine with legs elevated (Modified Trendelenburg) if necessary, but establishing IV access is still the definitive first action.
Option ④ (Obtain blood samples) is an important diagnostic step but is not the immediate priority. Lab results take time, and treatment must begin empirically based on clinical signs. Volume resuscitation should not be delayed for lab draws.
Related Concepts: This scenario integrates knowledge of shock management, postoperative complications, and nursing prioritization (ABCs). Remember, in any shock state, identifying and treating the underlying cause (hemorrhage -> volume replacement) is paramount.
Concept Summary
Concept
Key Takeaway
Hypovolemic Shock Pathophysiology
Loss of intravascular volume -> decreased preload -> decreased stroke volume & cardiac output -> hypotension & tissue hypoxia.
Nursing Priority (ABCs)
Circulation is the immediate concern. Secure IV access to administer fluids/blood.
Primary Intervention
Rapid volume replacement via large-bore IV catheters.
Directly treats the cause (volume loss). Lifesaving.
Administer Oxygen
High (done concurrently)
Maximizes oxygen delivery to hypoxic tissues.
Control Bleeding (if external)
High (if applicable)
Stops ongoing volume loss.
Draw Labs / Give Pain Meds
Lower / After Stabilization
Diagnostic/supportive; can delay or worsen resuscitation.
Anatomy, Physiology & Pharmacology Points
Physiology: Adequate Cardiac Output (CO) = Heart Rate (HR) x Stroke Volume (SV). In hypovolemia, SV drops due to low preload (venous return). Tachycardia is a compensatory mechanism.
Pharmacology: Initial fluid resuscitation uses isotonic crystalloids (NS, LR). If hemorrhage is severe, blood products (packed red blood cells) will be needed. Vasopressors (e.g., norepinephrine) are used only after adequate volume replacement.
Memory Tips
Acronym: VIP for shock management priorities: Ventilate (oxygen), Infuse (fluids), Pump (drugs/monitor). "Infuse" comes first for hypovolemic shock.
Think: "No Tank, No Pressure". The circulatory system is like a water tank. If the tank is empty (hypovolemia), you must fill it (IV fluids) before worrying about anything else.
High-Frequency NCLEX Topics
The NCLEX loves testing prioritization and "first" actions in emergency situations. Hypovolemic shock, especially post-op, is a classic scenario. Always ask yourself: "What action will most directly and immediately address the life-threatening problem?"
Watch Out for Question Variations!
Instead of asking for the "first" action, it might ask: "The nurse should anticipate an order for which intervention?" (Answer: Fluid bolus).
The scenario could change to anaphylactic or septic shock. The first action for anaphylaxis is epinephrine; for sepsis, it's still broad-spectrum antibiotics and fluids, but the sequence may be tested.
It could be a delegation question: "Which task can the RN delegate to an LPN/LVN?" Securing IV access for a critical patient typically cannot be delegated.
Nursing Clinical Practice GuideClinical Scenario: You are the nurse on a surgical floor. Mr. Jones, 4 hours post right total hip replacement, is restless. His BP has dropped from 130/80 to 80/50, HR is 120 and thready, skin is pale and clammy, and his Foley catheter bag shows only 15 mL of dark urine in the last hour. The surgical dressing is intact but has a moderate amount of sanguineous drainage.
Nursing Intervention Strategy:
1. Immediate Action & Assessment: Call for help (activate rapid response/code team per protocol) while simultaneously moving to establish two large-bore (16- or 18-gauge) IV lines. Assess the surgical site and under the patient for hidden bleeding. Apply oxygen via non-rebreather mask at 10-15 L/min.
2. Implementation: Once IV access is secured, immediately initiate a rapid infusion of Normal Saline or Lactated Ringer's as ordered (e.g., 1-2 liter bolus). Anticipate orders for blood transfusion (type and crossmatch) and possibly return to the OR for bleeding control.
3. Ongoing Monitoring & Evaluation: Continuously monitor vital signs, oxygen saturation, and level of consciousness. Strict I&O (Intake and Output). Reassess after each fluid bolus. The goal is to restore urine output to >0.5 mL/kg/hr and improve hemodynamics.
Patient Safety and Precautions: Use warmed IV fluids if possible to prevent hypothermia. When giving rapid fluid boluses, auscultate lung sounds frequently to assess for signs of fluid overload (crackles). Monitor for transfusion reactions if blood products are given.
Nursing Procedure & Medication FlowProcedure: Establishing Large-Bore IV Access for Resuscitation
Gather equipment: Two IV start kits, 16- or 18-gauge catheters, IV tubing, 1L bags of isotonic crystalloid.
Select large, proximal veins (e.g., antecubital).
Insert catheter, secure firmly, and label with date/time/gauge.
Prime tubing, connect to fluid, and open roller clamp fully for rapid infusion. Use pressure bags if available to increase flow rate.
Document sites, gauge, and time of initiation.
Medication: Isotonic Crystalloid Fluids
Normal Saline (0.9% NaCl): First-line for resuscitation. Caution in patients with heart failure or renal impairment.
Lactated Ringer's (LR): Often preferred as it more closely matches plasma electrolyte composition. Avoid in liver failure (impaired lactate metabolism).
A Word from Your Senior Nurse
"In the chaos of a crashing patient, your training kicks in. Remember your ABCs. For this post-op patient, the 'C' (Circulation) is screaming for help. Your hands starting that IV are the direct lifeline. In clinicals and on the NCLEX, they're testing your ability to cut through the noise and do the one thing that will save a life *right now*. It's not about the lab work or the perfect bed position—it's about volume, volume, volume. Master this thought process, and you'll handle not just test questions, but real bedside emergencies with clarity and confidence."
Hypovolemic Shock — A life-threatening condition where severe loss of blood or fluid decreases intravascular volume, leading to inadequate tissue perfusion and organ dysfunction.
Fluid Resuscitation — The rapid administration of intravenous fluids (crystalloids or colloids) to restore circulating volume and correct hypovolemia in shock states.
Preload — The degree of stretch of the cardiac muscle fibers at the end of diastole, directly related to the volume of blood returning to the heart (venous return). Reduced in hypovolemia.
Trendelenburg Position — A position where the patient's head is lowered and feet are elevated. Historically used for shock but is now contraindicated as it can impair respiratory function and is not proven to improve outcomes.
ABC Priority — A fundamental framework for assessment and intervention: Airway, Breathing, Circulation. Guides nurses to address the most immediate life-threatening issues first.