# A nurse is caring for a client who received a kidney transplant 6 months ago. Which assessment finding would be the most concerning and require immediate intervention?

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## 문제

A nurse is caring for a client who received a kidney transplant 6 months ago. Which assessment finding would be the most concerning and require immediate intervention?

## 보기

1. Blood pressure of 150/90 mmHg
2. Serum creatinine level of 1.8 mg/dL (increased from baseline of 1.2 mg/dL)
3. White blood cell count of 3,500/mm³
4. Temperature of 101.2°F (38.4°C) with productive cough **✔ 정답**

**정답: 4**

## 해설

Fever with productive cough in an immunosuppressed transplant patient indicates a serious infection requiring immediate intervention. Other findings (elevated BP, creatinine, low WBC) are concerning but less urgent.

## 심화 해설

Understanding the Priority: Acute Graft Dysfunction

In a client who is 6 months post-kidney transplant, the assessment must focus on detecting signs of rejection or other complications that threaten the viability of the graft. The most concerning finding is the one that indicates an acute and rapid decline in kidney function, as this requires immediate intervention to potentially salvage the organ.

Analysis of the Correct Answer (Option 1)

A rise in serum creatinine from 1.2 mg/dL to 2.8 mg/dL over just one week represents a rapid and significant loss of graft function. This is the hallmark of acute graft dysfunction. The provided evidence strongly supports the critical nature of this finding. Research demonstrates that early post-transplant serum creatinine is a powerful, independent predictor of long-term graft survival [1]. A sharp increase like this signals an active pathological process, such as acute rejection, which requires prompt diagnosis and management. Furthermore, the literature highlights that while serum creatinine is a late and nonspecific marker of kidney injury, a rapid functional decline is a critical clinical alarm that demands immediate investigation and intervention to prevent irreversible damage [3]. This change is the most direct and urgent indicator of a threat to the transplanted organ.

Why the Other Options Are Less Urgent

- Option 2: Blood pressure reading of 150/90 mmHg with mild headache. Hypertension is a common post-transplant issue and a known risk factor for long-term graft loss [4]. It can also be a sign of transplant renal artery stenosis (TRAS), a potentially reversible cause of graft dysfunction [2]. However, in the context of a 6-month post-transplant client, a single elevated reading with a mild headache is a subacute concern. While it requires evaluation and management, it does not represent the same level of immediate threat to the graft's viability as a doubling of the serum creatinine. The hypertension is a sign of a potential underlying problem, whereas the creatinine rise is the direct evidence of the organ failing.

- Option 3: White blood cell count of 3,500/mm³ with no fever. A low white blood cell count (leukopenia) is a significant finding in an immunosuppressed transplant recipient, as it increases the risk for opportunistic infections. This is a safety concern that requires dose adjustment of immunosuppressive medications. However, in the absence of fever or other signs of active infection, this finding is less immediately life-threatening or graft-threatening than an acute, severe decline in kidney function. The priority is to address the direct evidence of organ failure first.

- Option 4: Mild peripheral edema in bilateral lower extremities. Mild, bilateral edema can be a relatively common finding post-transplant and may be related to medications, fluid balance, or venous insufficiency. While it warrants monitoring and further assessment, it is a nonspecific and often non-urgent finding. It does not provide the same acute, objective evidence of deteriorating graft function as a rapid and significant increase in serum creatinine.References (research sources)

- [1]Serum Creatinine Level at One Month Post-Transplant Predicts 3-Year and 5-Year Graft Survival and Renal Function: A Large Single-Center Retrospective Cohort Study.Research articleLee J, Son S, Ju M. (2026) · DOI: 10.3390/jcm15114238

- [2]Silent but Severe: Transplant Renal Artery Stenosis Causing Acute Graft Dysfunction in a Child With Cystinosis.Research articleBecerir T, Altıntaş ÜS, Girişgen İ, Kabukcuoğlu MB, Kılıç P, Arslan M. (2026) · DOI: 10.1111/petr.70372

- [3]Early Post-Transplant Protein Biomarkers for Risk Stratification of Renal Allograft Dysfunction: Diagnostic Value and Clinical Chemistry Perspectives.Research articleBot Rachisan AL, Aldea PL, Bulata B, Delean D, Elec F, Sparchez M. (2026) · DOI: 10.3390/diseases14010036

- [4]Predictors of Long-Term Kidney Transplant Survival: A Scoping Review.Research articleToni E, Ayatollahi H, Ziyaee S, Rahimi F. (2026) · DOI: 10.1002/hsr2.72606

## 임상 시나리오

Clinical Practice Guide
Post-kidney transplant patient evaluation is based on three main pillars: infection, rejection, and drug side effects. Fever is a red flag that should never be overlooked in immunosuppressed patients. Since infection can be present even with normal or low body temperature, attention must be paid to fatigue, altered mental status, and localized symptoms (pain, discharge) in addition to fever.

Caution: In SATA (Select All That Apply) questions, when asked to choose the "most concerning" or "requiring immediate intervention" item, you must select **only one**. All options may represent 'problematic' situations, but the question asks for the 'most urgent' one. Questions asking you to prioritize between 'elevated creatinine (suspected rejection)' and 'fever (suspected infection)' are very common.

## 핵심 개념

- **Immunosuppressive Therapy** — Immunosuppressive therapy. Drug treatment used to prevent the body's immune system from attacking a transplanted organ after organ transplantation. This increases the risk of infection and certain cancers.
- **Tacrolimus** — A powerful immunosuppressant in the calcineurin inhibitor class. It is used as a key agent for preventing rejection after kidney transplantation. Side effects may include nephrotoxicity, hyperglycemia, and neurotoxicity.
- **Mycophenolate** — A type of immunosuppressant. It works by suppressing the proliferation of lymphocytes. Major side effects include gastrointestinal disturbances (diarrhea, nausea) and bone marrow suppression (leukopenia, anemia).
- **Productive Cough** — Productive cough. A cough accompanied by sputum (phlegm), which is an important symptom suggesting a respiratory infection (such as bronchitis, pneumonia, etc.).
- **Sepsis** — Sepsis. A condition in which a systemic inflammatory response to infection leads to life-threatening organ dysfunction. It is particularly dangerous in immunosuppressed patients, as symptoms may present unclearly.

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