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Physiological AdaptationButterfly rash + multi-organ

Systemic Lupus ErythematosusNCLEX cheat sheet

Systemic lupus erythematosus is a chronic autoimmune disease in which the immune system attacks the body's own connective tissue, producing widespread inflammation across skin, joints, kidneys, heart, lungs, and brain.

24 key facts 3 practice questions Reviewed Oct 2026
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Signs

  • Butterfly malar rash, photosensitive
  • Joint pain, fatigue, fever
  • Remissions + exacerbations

Labs

  • +ANA, +anti-dsDNA (specific)

Report

  • Lupus nephritis → ↑ BUN/Cr, proteinuria
  • Kidney = #1 cause of death

Teach

  • Avoid sun, use SPF, hats
  • Steroids, hydroxychloroquine, eye exams
Red flag to remember

New or worsening proteinuria, edema, hypertension, or rising creatinine signals lupus nephritis and must be reported.

Before you read

Test yourself first: 3 questions

Question 1 of 3

A client with systemic lupus erythematosus (SLE) is taught to:

What is systemic lupus erythematosus?

It follows a pattern of flares and remissions and most often affects women of childbearing age. The classic sign is a malar (butterfly) rash across the cheeks and nose that worsens with sun exposure. Lupus nephritis is the most serious organ complication.

Systemic Lupus Erythematosus illustrated

Systemic lupus erythematosus: common multi-system symptoms
Systemic lupus erythematosus: common multi-system symptoms. Illustration: Mikael Häggström via Wikimedia Commons, Public domain.

Key points to remember

  • A malar butterfly-shaped facial rash and a photosensitive discoid rash are hallmark skin findings.
  • Symmetric joint pain, swelling, fatigue, low-grade fever, and oral ulcers are common.
  • Renal involvement (lupus nephritis) causes proteinuria, hematuria, and rising creatinine and is a leading cause of morbidity.
  • Sun exposure, infection, and stress can trigger disease flares.
  • Positive ANA is nearly universal; anti-dsDNA and anti-Smith antibodies are more specific to lupus.
  • Serositis, pericarditis, pleuritis, and neurologic changes can occur during active disease.

Signs & symptoms

  • Butterfly malar rash, photosensitive
  • Joint pain, fatigue, fever
  • Remissions + exacerbations

Nursing priorities

  1. Monitor renal function (urine protein, BUN, creatinine) and blood pressure for lupus nephritis.
  2. Administer corticosteroids, hydroxychloroquine, and immunosuppressants as ordered and monitor for side effects.
  3. Promote rest balanced with activity to manage fatigue and protect joints.
  4. Teach and reinforce strict sun protection and infection prevention.
  5. Assess for signs of flares and organ involvement at each encounter.

Labs & values

ANA positive (screening, sensitive but not specific)
Anti-dsDNA and anti-Smith antibodies (specific for SLE; anti-dsDNA tracks disease activity)
Complement C3/C4 often low during active disease; ESR/CRP elevated with inflammation

Patient teaching

  • Avoid direct sun, wear protective clothing, and use broad-spectrum sunscreen daily to prevent flares.
  • Take medications consistently, do not stop steroids abruptly, and keep follow-up appointments for organ monitoring.
  • Prevent infection with hand hygiene and vaccines as advised, and report fever, swelling, or new symptoms early.

Red flags: report now

  • New or worsening proteinuria, edema, hypertension, or rising creatinine signals lupus nephritis and must be reported.
  • Chest pain, dyspnea, or a pericardial friction rub may indicate pericarditis or pleuritis needing urgent evaluation.
  • New confusion, seizures, or severe headache can indicate CNS lupus and requires immediate attention.
  • Because immunosuppression raises infection risk, any fever should be reported promptly.

References

Clinical references for this topic

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