A nurse is caring for a 58-year-old patient who underwent major orthopedic surgery 24 hours ago. The patient's vital signs have been stable, but the nurse notices subtle changes during the assessment. Which finding should be the nurse's HIGHEST priority for immediate intervention?
The nurse observes that the patient appears slightly more restless than earlier, with a respiratory rate that has increased from 16 to 22 breaths per minute over the past 2 hours.
1Blood pressure decreased from 125/75 mmHg to 115/70 mmHg
2Urine output of 15 mL in the past hour with dark amber-colored urine
3Heart rate increased from 78 bpm to 98 bpm with new onset of anxiety✓ 정답
4Oral temperature elevated from 98.4°F to 99.8°F (37.7°C)
해설
Tachycardia (HR increase to 98 bpm) with new anxiety suggests potential complications like bleeding or sepsis, requiring immediate intervention. Other findings (mild BP drop, low urine output, slight fever) are less urgent.
Core Nursing ExplanationKey Concept Analysis: This question tests the critical nursing skill of prioritization and early recognition of postoperative complications. The scenario involves a patient 24 hours after major orthopedic surgery, a prime window for complications like hemorrhage, pulmonary embolism (PE), or sepsis. The nurse must identify the finding that signals the most immediate threat to life, using principles like Key Point!ABCs (Airway, Breathing, Circulation) and Maslow's Hierarchy of Needs.
Answer Rationale: The correct answer is ③ because it presents the most concerning cluster of symptoms. A heart rate increase from 78 to 98 bpm (Tachycardia) combined with new-onset anxiety is a classic early sign of compensatory shock (e.g., hypovolemic shock from internal bleeding) or a pulmonary embolism. Tachycardia is the body's first compensatory mechanism to maintain cardiac output when stroke volume falls. Anxiety and restlessness are often the earliest behavioral signs of hypoxia or decreased cerebral perfusion. This combination requires immediate assessment (e.g., check surgical site, oxygen saturation, lung sounds) and intervention to prevent deterioration.
Distractor Analysis:
Option ① (BP 125/75 to 115/70): A mild decrease in blood pressure is often not the first sign of trouble. In early shock, the body compensates by increasing heart rate to maintain blood pressure. A slight drop like this, without other significant symptoms, is less urgent and requires monitoring. Watch out for confusion! Blood pressure is a late sign of shock; it falls when compensatory mechanisms fail.
Option ② (Urine output 15 mL/hr, dark amber): Low urine output (Oliguria) and dark urine are concerning for dehydration or potential acute kidney injury (AKI). While important and requiring intervention (e.g., fluid challenge), it is not typically the highest immediate priority unless the patient is in overt renal failure. Airway, breathing, and circulation (the ABCs) take precedence.
Option ④ (Temp 98.4°F to 99.8°F / 37.7°C): A low-grade fever (Low-grade fever) 24 hours post-op is common and often related to atelectasis or the body's inflammatory response to surgery. It requires monitoring and interventions like incentive spirometry but is not an immediate life threat compared to signs of circulatory compromise.
Related Concepts: This integrates knowledge of postoperative assessment, shock (compensatory vs. progressive), and the nursing process (assessment and analysis). The subtle changes (increased RR, restlessness) mentioned in the stem are additional clues that the patient's condition is shifting, making the new tachycardia and anxiety even more significant.
Concept Summary
Concept
Key Takeaway
Prioritization (ABCs)
Airway, Breathing, Circulation are always the top priorities. Tachycardia with anxiety points directly to a potential Circulation/Perfusion problem.
Early Signs of Shock
Restlessness, anxiety, tachycardia, tachypnea. Hypotension is a LATE sign.
Post-op Complication Vigilance
Major orthopedic surgery carries risks for hemorrhage, PE, infection. The first 24-72 hours are critical.
Nursing Assessment
Trending vital signs and behavioral changes (like new anxiety) are more telling than a single data point.
Side-by-Side Comparison!
Finding
Possible Cause
Priority Level & Rationale
Tachycardia + New Anxiety
Early shock (bleeding), PE, Pain
HIGHEST - Direct threat to circulation/perfusion; requires immediate investigation.
Mild BP Drop
Dehydration, Medication effect, Normal variation
LOW - Monitor trend. Not urgent unless accompanied by other symptoms.
Oliguria + Dark Urine
Dehydration, AKI, Rhabdomyolysis (post-ortho)
MODERATE/HIGH - Requires intervention (fluids) but not an immediate ABC threat.
Physiology: In hypovolemia (e.g., from bleeding), the sympathetic nervous system is activated, releasing catecholamines (epinephrine, norepinephrine). This causes tachycardia (to increase cardiac output) and vasoconstriction (to maintain BP). Anxiety/restlessness is from decreased cerebral perfusion and catecholamine surge.
Pathophysiology: A Pulmonary Embolism (PE) causes ventilation-perfusion (V/Q) mismatch, leading to hypoxia. The body compensates with tachypnea and tachycardia. Anxiety is a direct result of hypoxia and a sense of "impending doom."
Memory Tips
Think "H's and T's" for Tachycardia: Hypovolemia, Hypoxia, Hemorrhage, Heart problems (PE strain) – all start with H and are emergencies!
Shock Mnemonic: For early signs, remember "RAT" – Restlessness, Anxiety, Tachycardia/Tachypnea. The blood pressure is still okay in this phase.
High-Frequency NCLEX Topics
Prioritization ("which finding is most concerning?", "which patient to see first?") is a core NCLEX strategy. The exam loves to test your ability to distinguish between urgent vs. non-urgent findings, especially in post-op patients. Always apply ABCs, Maslow's, and safety first.
Watch Out for Question Variations!
Instead of asking for the "highest priority finding," it could ask: "The nurse should first assess which of the following?" (Answer: Check the surgical dressing for bleeding, assess oxygen saturation).
The scenario could change to a post-op patient with calf pain and shortness of breath, making tachycardia a sign of PE – the priority intervention would then be to notify the provider and prepare for diagnostic imaging (CTPA), not just monitor.
Nursing Clinical Practice GuideClinical Scenario: You are the day-shift nurse for Mr. Johnson, 58, who had a total hip replacement yesterday. During your 10 AM assessment, you note he seems more fidgety and is asking repetitive questions. His vital signs show HR 98 (up from 78 at 6 AM), RR 22, BP 115/70, SpO2 96% on room air.
Nursing Intervention Strategy:
Immediate Assessment (Circulation & Source):
Check the surgical site dressing and posterior hip area (for concealed bleeding). Is it intact, dry, and free of excessive drainage?
Assess distal pulses, capillary refill, and color/temperature of the operative leg.
Auscultate heart and lung sounds. New crackles? Muffled heart sounds?
Re-evaluate pain level. Is his pain controlled, or could uncontrolled pain be causing tachycardia and anxiety?
Implement Interventions:
Apply oxygen via nasal cannula to increase oxygen saturation and reduce cardiac workload.
Increase the IV fluid rate (if ordered) as a fluid challenge, unless contraindicated.
Ensure patient safety due to anxiety/restlessness (raise side rails, reorient).
Notify the Provider: Report your findings succinctly using SBAR (Situation, Background, Assessment, Recommendation). "I'm calling about Mr. Johnson in room 204, post-op day 1 from THA. He has developed new tachycardia to 98 with anxiety and restlessness. His dressing is dry, lungs are clear. I've applied oxygen. Would you like me to obtain stat labs like a CBC or draw a type and screen?"
Do NOT dismiss tachycardia and anxiety as "just pain" or "normal post-op jitters" without a thorough assessment.
Do NOT administer sedatives for anxiety until a physiological cause (like hypoxia or hypovolemia) is ruled out, as this can mask deterioration.
Be vigilant for signs of Fat Embolism Syndrome (FES) after long bone surgery (tachycardia, hypoxemia, petechial rash, confusion).
Nursing Procedure & Medication FlowResponding to Tachycardia & Anxiety Post-Op:
1. Assess: Full set of vitals, SpO2, pain score, physical exam (lungs, heart, surgical site).
2. Intervene: Administer O2 per protocol. Check IV patency and rate. Provide reassurance and reorientation.
3. Investigate: Review medication administration record (MAR) for recent analgesics or other drugs. Check intake/output.
4. Communicate: SBAR report to provider.
5. Prepare: Have emergency equipment accessible (crash cart, fluids). Be ready to assist with procedures or transport for imaging.
A Word from Your Senior Nurse
"In the hustle of a busy post-op unit, it's easy to focus on tasks. But your most powerful tool is observation. That subtle change in a patient's demeanor—the increased restlessness, the slight uptick in heart rate—is your early warning system. Catching a complication like internal bleeding or a PE at this 'RAT' stage (Restlessness, Anxiety, Tachycardia) allows for intervention before the blood pressure crashes. That's the difference between a rapid response call and a code blue. On the NCLEX and in practice, never underestimate the priority of tachycardia with a behavioral change. It's the body's alarm bell—your job is to hear it and act."
Tachycardia — A heart rate greater than 100 beats per minute (bpm) in adults. In this context, an increasing trend (78 to 98 bpm) with anxiety is a critical early sign of physiological stress (e.g., hypovolemia, hypoxia, pain).
Hypovolemic Shock — A state of shock caused by a significant loss of blood or fluids, leading to inadequate tissue perfusion. Compensatory mechanisms include tachycardia, tachypnea, and anxiety before hypotension develops.
Pulmonary Embolism — A blockage of one or more pulmonary arteries by a thrombus (usually from DVT). Symptoms include sudden dyspnea, pleuritic chest pain, tachycardia, anxiety/impending doom, and hypoxemia. A major post-op complication.
Oliguria — Low urine output, typically defined as less than 0.5 mL/kg/hr in adults. In this case, 15 mL/hr for an average adult indicates oliguria, suggesting dehydration or impaired renal perfusion.
SBAR Communication — A structured method for communicating critical information: Situation, Background, Assessment, Recommendation. It is essential for safe, effective handoffs and when reporting changes in patient condition to providers.