# A nurse is caring for a client who underwent a splenectomy 12 hours ago. Which nursing intervention should the nurse prioritize to prevent the most serious postoperative complication?

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## 문제

A nurse is caring for a client who underwent a splenectomy 12 hours ago. Which nursing intervention should the nurse prioritize to prevent the most serious postoperative complication?

## 보기

1. Monitor for signs of hemorrhage and check vital signs every 2 hours
2. Encourage deep breathing exercises and use of incentive spirometer
3. Assess surgical site for signs of infection and change dressings as needed
4. Administer prophylactic antibiotics and monitor for infection **✔ 정답**

**정답: 4**

## 해설

Administering prophylactic antibiotics is the priority to prevent overwhelming postsplenectomy infection (OPSI), the most serious complication due to loss of spleen's immune function. Other interventions like hemorrhage monitoring or breathing exercises are important but secondary to infection prevention.

## 심화 해설

Understanding the Priority Post-Splenectomy

A splenectomy, the surgical removal of the spleen, places the client at risk for a range of postoperative complications. However, the most critical long-term risk, and the one that demands immediate and sustained prioritization, is the development of overwhelming infection. The spleen is a vital organ for the immune system, acting as a primary filter for blood and a site for the production of antibodies, particularly against encapsulated bacteria such as Streptococcus pneumoniae, Haemophilus influenzae, and Neisseria meningitidis. Without a spleen, the body's ability to opsonize and clear these pathogens is severely compromised, leading to a condition known as overwhelming post-splenectomy infection (OPSI), which can progress from mild symptoms to fatal sepsis within hours [1,2].

Analysis of the Options

While all listed interventions are components of postoperative care, the question asks for the priority intervention to prevent the *most serious* complication. The risk of OPSI, with its high mortality rate, outweighs the immediate risks of hemorrhage or atelectasis in the context of long-term prevention beginning in the immediate postoperative period.

- **Option 1:** Monitoring for hemorrhage is a standard and crucial intervention in the first 24 hours after any major abdominal surgery. However, hemorrhage is an acute, early complication. The question's focus on "most serious" complication points toward the unique, lifelong, and lethal risk of infection for an asplenic client.

- **Option 2:** Deep breathing and incentive spirometry are essential to prevent postoperative atelectasis and pneumonia. While pneumonia is an infection, it is a general surgical risk, not the specific, catastrophic risk of OPSI from encapsulated organisms.

- **Option 3:** Assessing the surgical site for infection is important for wound care management. A surgical site infection is a localized complication, whereas OPSI is a systemic, rapidly fatal event. The priority is preventing the systemic infection.

- **Option 4:** Administering prophylactic antibiotics directly targets the prevention of OPSI by providing coverage against the most common causative organisms, particularly S. pneumoniae. This intervention is a cornerstone of evidence-based management for asplenic patients and is recommended to be initiated early [1]. The failure to adhere to this and other prophylactic measures is linked to increased morbidity and mortality from infection [1].

Deep Dive into the Rationale

The spleen's role in immunity is irreplaceable. It synthesizes antibodies and clears opsonized bacteria from the bloodstream. Post-splenectomy, the immune system is specifically blind to polysaccharide-encapsulated organisms. A case report vividly illustrates this danger, describing severe pneumococcal infections in two asplenic family members, highlighting how a normally contained pathogen can become life-threatening in the absence of splenic function [2]. This demonstrates that the risk is not theoretical but a clinical reality that can be triggered by common exposures.

The quality improvement project by O'Neill et al. reinforces that the standard of care to mitigate this risk involves a bundle of interventions: patient education, vaccination, and crucially, early antibiotic therapy for any sign of fever [1]. The priority nursing intervention at 12 hours postoperatively is to initiate this protective strategy. Administering prophylactic antibiotics as prescribed is the most direct and effective action to prevent the onset of OPSI, a condition with a mortality rate that can reach 50-70% once septic shock develops. This intervention is not merely treating a potential infection; it is a life-saving prophylactic measure against a known, predictable, and catastrophic complication.References (research sources)

- [1]The development of a quality improvement project to improve infection prevention and management in patients with asplenia or hyposplenia.Research articleO'Neill NE, Baker J, Ward R, Johnson C, Taggart L, Sholzberg M. (2020) · DOI: 10.1136/bmjoq-2019-000770

- [2]Pneumococcal infection transmission between family members with congenital asplenia: A case report.Case reportShibata J, Hiramatsu K, Kenzaka T, Kato T. (2019) · DOI: 10.12998/wjcc.v7.i24.4277

## 임상 시나리오

Post-Splenectomy Infection PreventionPrioritizing Prophylaxis Against OPSI
The spleen is critical for clearing encapsulated bacteria. Its removal creates a lifelong risk for Overwhelming Post-Splenectomy Infection (OPSI), a rapidly fatal sepsis.

Administer prophylactic antibiotics as prescribed, typically starting immediately postoperatively. Ensure vaccinations against S. pneumoniae, H. influenzae type b, and N. meningitidis are administered, ideally 2 weeks before elective surgery or as soon as possible after emergency surgery.

CautionA fever in an asplenic patient is a medical emergency. Instruct patients to seek immediate care and start empiric antibiotics without waiting for culture results, as OPSI can progress to death within hours.

## 핵심 개념

- **Overwhelming Post-Splenectomy Infection (OPSI)** — A fulminant, life-threatening infection in asplenic patients, often caused by encapsulated bacteria, progressing to sepsis within hours.
- **Encapsulated Bacteria** — Bacteria with a polysaccharide capsule (e.g., S. pneumoniae, H. influenzae, N. meningitidis) that require splenic opsonization for clearance.
- **Splenectomy** — Surgical removal of the spleen, eliminating a primary filter for blood and a major site of antibody production.
- **Opsonization** — The process by which a pathogen is marked for ingestion and destruction by a phagocyte, a key splenic immune function.

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