# A nurse is caring for a client who underwent a below-knee amputation 48 hours ago. The client reports severe phantom limb pain rated 8/10. Which nursing intervention should the nurse implement first?

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## 문제

A nurse is caring for a client who underwent a below-knee amputation 48 hours ago. The client reports severe phantom limb pain rated 8/10. Which nursing intervention should the nurse implement first?

## 보기

1. Administer prescribed gabapentin and provide mirror therapy education **✔ 정답**
2. Apply heat therapy to the residual limb to improve circulation
3. Encourage the client to focus on positive thoughts to distract from pain
4. Position the residual limb in a dependent position to reduce swelling

**정답: 1**

## 해설

Gabapentin is first-line for phantom limb pain, and mirror therapy is evidence-based. Other options are ineffective or contraindicated.

## 심화 해설

Understanding Phantom Limb Pain

The client is experiencing severe phantom limb pain (PLP), a neuropathic pain syndrome perceived in the absent body part. This is not a psychological disorder but a physiologic consequence of amputation. The underlying mechanisms involve peripheral nerve lesions, central sensitization, and cortical reorganization [4]. Because PLP is neuropathic in origin, its management differs fundamentally from nociceptive pain, requiring targeted pharmacologic and non-pharmacologic strategies.

Why Option 1 is the Priority Intervention

Administering prescribed gabapentin and providing mirror therapy education directly addresses the established pathophysiology of PLP and aligns with current evidence-based practice.

Gabapentin is a first-line pharmacologic agent for neuropathic pain. A systematic review and network meta-analysis evaluating pharmacologic therapies for postamputation pain supports the efficacy of gabapentinoids in reducing neuropathic pain intensity [3]. The mechanism involves binding to voltage-gated calcium channels in the central nervous system, which decreases excitatory neurotransmitter release and dampens the central sensitization driving PLP [4].

Mirror therapy leverages the mirror neuron system (MNS) to address the cortical reorganization component of PLP. The MNS links action perception and motor representation, and mirror therapy uses a visual feedback illusion of the intact limb to "retrain" the brain, potentially reversing maladaptive cortical plasticity [1]. Evidence-based overviews for clinical practice identify mirror therapy as a recommended non-pharmacologic intervention for PLP [2][4].

The nurse must prioritize this combined approach because pharmacotherapy provides systemic modulation of neuropathic pathways, while mirror therapy offers a non-invasive method to target cortical reorganization. Together, they address the multifactorial nature of PLP more effectively than either intervention alone.

Why the Other Options are Incorrect

**Option 2: Apply heat therapy to the residual limb.** Heat application is contraindicated in the early postoperative period (48 hours post-amputation) due to the risk of increasing edema, bleeding, and infection at the surgical site. Furthermore, heat therapy does not address the neuropathic mechanisms of PLP, which originate in the central and peripheral nervous systems rather than from local tissue injury [4].

**Option 3: Encourage the client to focus on positive thoughts.** While psychological factors can influence the experience of PLP, distraction alone is insufficient for severe neuropathic pain rated 8/10. This approach dismisses the physiologic basis of PLP and delays the implementation of effective, mechanism-based treatments. Psychological support may be an adjunctive strategy but is never the primary intervention for acute, severe PLP [2][4].

**Option 4: Position the residual limb in a dependent position.** Positioning the residual limb dependently would increase venous congestion and edema, potentially worsening pain and compromising wound healing. Postoperative positioning should focus on elevation to reduce edema and prevent contractures. This intervention is directly harmful and contradicts standard post-amputation care principles.

Clinical Reasoning and NCLEX-RN Application

The nurse must recognize that PLP is a true neuropathic pain condition, not an imagined or purely psychological phenomenon. The lifetime prevalence exceeds 80% after amputation, with higher rates following proximal or major amputations [4]. When prioritizing interventions, the nurse should select treatments with the strongest evidence for the underlying mechanism. In this scenario, the combination of a gabapentinoid (pharmacologic) and mirror therapy (non-pharmacologic) represents the most comprehensive, evidence-based initial approach for severe PLP [2][3][4]. The NCLEX-RN frequently tests the ability to differentiate between nociceptive and neuropathic pain management and to prioritize interventions that directly target the pathophysiology of the condition.References (research sources)

- [1]Mirror Neurons and Pain: A Scoping Review of Experimental, Social, and Clinical Evidence.Research articleCascella M, Manchiaro P, Marinangeli F, Di Fabio C, Sollecchia G, Vittori A, Cerrone V. (2026) · DOI: 10.3390/healthcare14020280

- [2][Treatment of phantom limb pain - an evidence-based overview for clinical practice].Research articleErk M, Gaik C, Volberg C. (2026) · DOI: 10.1007/s15006-026-5643-2

- [3]Pharmacological Therapies for Pain Management in Patients With Amputation: A Systematic Review and Network Meta-Analysis.Meta-analysis/systematic reviewLeal NTB, Marinho LRDF, Pereira VDSL, Pontes BCR, Sarmento ACA, Medeiros KS, Ribeiro KRB, Dantas RAN, Dantas DV. (2026) · DOI: 10.1155/prm/3654470

- [4][Pain Therapy for Phantom Pain].Research articleErk M, Volberg C, Gaik C. (2025) · DOI: 10.1055/a-2577-2504

## 임상 시나리오

Clinical Management of Phantom Limb Pain

Phantom limb pain (PLP) is a debilitating neuropathic condition requiring a multimodal, evidence-based approach. The priority for severe, acute-onset PLP is simultaneous pharmacologic and non-pharmacologic intervention to target peripheral and central pain mechanisms.

Immediate Nursing Actions

- **Pain Assessment:** Use a validated scale (e.g., 0-10 NRS) to quantify pain intensity and document quality (e.g., burning, stabbing, cramping).

- **Pharmacologic Intervention:** Administer prescribed gabapentin or pregabalin promptly. These gabapentinoids are first-line agents that reduce central sensitization by modulating calcium channels.

- **Mirror Therapy Initiation:** Educate the client on mirror therapy technique: place a mirror vertically to reflect the intact limb, creating a visual illusion of the missing limb. Instruct the client to perform slow, symmetrical movements while watching the reflection for 15-20 minutes daily to reverse cortical reorganization.

Contraindicated Interventions

- **Heat Application:** Avoid on the residual limb. Vasodilation increases the risk of hemorrhage, hematoma formation, and edema in the early postoperative period (first 48-72 hours).

- **Dependent Positioning:** Do not place the residual limb in a dependent position. This promotes venous stasis, increases edema, and delays wound healing. Maintain elevation on pillows for the first 24-48 hours.

- **Distraction as Sole Therapy:** While cognitive-behavioral strategies are useful adjuncts, they are insufficient as the primary intervention for severe neuropathic pain rated 8/10.

Ongoing Care and Monitoring

- **Residual Limb Care:** Monitor the incision for signs of infection, ensure proper wound dressing, and begin gentle desensitization techniques once the incision is healed.

- **Interprofessional Collaboration:** Coordinate with physical therapy for early mobilization and prosthetic fitting, and consult a pain specialist if PLP persists despite initial treatment.

- **Client Education:** Reassure the client that PLP is a real, physiologic phenomenon, not a psychological issue. Explain the brain's role in pain perception to validate their experience and improve engagement with mirror therapy.

## 핵심 개념

- **Phantom Limb Pain** — A neuropathic pain syndrome perceived in an absent body part following amputation, driven by peripheral nerve lesions, central sensitization, and cortical reorganization.
- **Gabapentin** — A first-line pharmacologic agent for neuropathic pain that binds to voltage-gated calcium channels in the CNS, reducing excitatory neurotransmitter release.
- **Mirror Therapy** — A non-pharmacologic intervention that uses a visual feedback illusion of the intact limb to retrain the brain and reverse maladaptive cortical reorganization.
- **Central Sensitization** — An increased responsiveness of nociceptive neurons in the central nervous system to normal or subthreshold afferent input, a key mechanism in chronic neuropathic pain.

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