Stevens–Johnson Syndrome & TEN in NCLEX-RN: Medication Reactions, Skin Sloughing and Priority Nursing Actions

 A patient recently started a new medication.

Several days or weeks later, the patient develops:

Fever + painful rash + blisters + mouth sores + skin peeling

What should the nurse suspect?

STEVENS–JOHNSON SYNDROME / TOXIC EPIDERMAL NECROLYSIS

This is not simply a minor medication rash.

SJS and TEN are rare but potentially life-threatening severe cutaneous adverse reactions involving the skin and mucous membranes. NCBI

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What Are SJS and TEN?

Stevens–Johnson syndrome and toxic epidermal necrolysis are considered part of the same disease spectrum.

They can cause:

• Epidermal cell death
• Blistering
• Skin detachment
• Painful mucosal lesions
• Systemic complications

The major difference is the amount of body surface area affected.

SJS

LESS THAN 10% BODY SURFACE AREA DETACHMENT

SJS/TEN Overlap

10–30%

TEN

MORE THAN 30%

TEN therefore represents the more extensive end of the spectrum. PubMed Central (PMC)

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Most Important Cause: Medications

For NCLEX, think:

NEW MEDICATION + PAINFUL RASH + MUCOSAL LESIONS = SJS/TEN WARNING

SJS/TEN is most commonly associated with medications, although infections can occasionally act as triggers. PubMed Central (PMC)

Medication groups associated with SJS/TEN include certain:

• Antiseizure medications
• Antibiotics
• NSAIDs
• Other high-risk medications

The exact medication history is extremely important.

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Early Symptoms Can Look Like an Infection

Before major skin detachment occurs, the patient may develop nonspecific symptoms such as:

• Fever
• Malaise
• Sore throat
• Cough
• Burning eyes

Skin and mucosal manifestations can then develop.

This is why medication history matters.

Ask:

“DID THE PATIENT RECENTLY START A NEW MEDICATION?”

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Classic Skin Findings

Watch for:

• Painful erythematous rash
• Blisters
• Bullae
• Epidermal detachment
• Skin sloughing
• Tender skin

One important clue is:

THE SKIN CAN BE VERY PAINFUL.

This distinguishes SJS/TEN from many uncomplicated rashes.

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Mucosal Involvement

SJS/TEN commonly affects mucous membranes.

Assess the:

Mouth

• Painful ulcers
• Erosions
• Difficulty eating
• Difficulty swallowing

Eyes

• Redness
• Pain
• Photophobia
• Conjunctival involvement

Genital/urinary tract

• Painful lesions
• Erosions

Ocular involvement is especially important because serious long-term eye complications can occur. PubMed Central (PMC)

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FIRST Major Action: Stop the Suspected Medication

Once SJS/TEN is suspected, one of the most important management principles is:

DISCONTINUE THE SUSPECTED CAUSATIVE MEDICATION

Do not continue administering a suspected offending medication while waiting for the rash to worsen.

Prompt withdrawal is a key early intervention. NCBI

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NCLEX Practice Question 1

A patient started a new medication and now develops fever, painful oral lesions, blistering and widespread skin peeling.

What should the nurse do first?

A. Administer the next scheduled dose
B. Suspect SJS/TEN and immediately escalate care while withholding the suspected medication
C. Apply cosmetic lotion and reassess tomorrow
D. Encourage the patient to walk

Correct Answer: B

Rationale

SJS/TEN is a potentially life-threatening medication reaction. Early recognition and withdrawal of the suspected causative drug are critical components of management. NCBI

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ABCs Still Come First

Although SJS/TEN is primarily visible on the skin, don't forget:

AIRWAY CAN BECOME INVOLVED.

Mucosal injury may involve the respiratory tract.

Assess:

• Airway
• Respiratory effort
• Oxygen saturation
• Voice changes
• Difficulty swallowing
• Respiratory distress

If the patient develops airway compromise:

AIRWAY > SKIN

Frequent airway assessment is an important nursing priority. PubMed Central (PMC)

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Why Is Fluid Balance Important?

Extensive epidermal loss compromises the normal skin barrier.

Patients can lose significant amounts of:

• Fluid
• Electrolytes
• Heat

Therefore monitor:

• Intake and output
• Urine output
• Blood pressure
• Heart rate
• Electrolytes
• Renal function
• Hydration status

Fluid replacement should be individualized rather than automatically treating SJS/TEN exactly like a thermal burn. PubMed Central (PMC)

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Infection Is a Major Concern

The skin normally provides an important barrier against microorganisms.

When large areas of epidermis detach:

THE PROTECTIVE BARRIER IS LOST.

This increases the risk of serious infection and sepsis.

Nursing care includes:

• Careful wound management
• Appropriate aseptic technique
• Monitoring for infection
• Limiting unnecessary invasive devices
• Careful catheter/line management

Importantly:

PROPHYLACTIC SYSTEMIC ANTIBIOTICS ARE NOT AUTOMATICALLY REQUIRED.

Antibiotics are generally used when infection is suspected or confirmed rather than simply because skin loss exists. PubMed Central (PMC)

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NCLEX Practice Question 2

Which finding in a patient with SJS/TEN requires the highest priority?

A. Pain score of 7/10
B. Multiple skin blisters
C. New stridor and respiratory distress
D. Poor appetite

Correct Answer: C

Rationale

Stridor and respiratory distress indicate possible airway compromise.

Using ABC priorities:

AIRWAY COMES FIRST.

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Pain Management

SJS/TEN can be extremely painful because epidermal loss exposes sensitive underlying tissues.

Pain management is therefore an important part of nursing care.

Assess pain:

• At rest
• During repositioning
• During wound care
• During dressing changes

Provide prescribed analgesia and use gentle handling.

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Avoid Additional Skin Trauma

The skin may be extremely fragile.

Nursing care should minimize:

• Friction
• Shearing
• Unnecessary adhesive tape
• Rough repositioning
• Unnecessary trauma from medical devices

Gentle handling helps prevent further epidermal separation. PubMed Central (PMC)

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Eye Care Is Extremely Important

Do not focus only on the skin.

SJS/TEN can cause significant ocular complications.

Assess for:

• Eye pain
• Redness
• Photophobia
• Discharge
• Visual changes

Early ophthalmologic involvement may be necessary.

NCLEX clue:

SJS/TEN + EYE SYMPTOMS = TAKE SERIOUSLY.

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Nutrition

Extensive skin injury increases metabolic requirements.

Painful oral lesions may also make eating difficult.

The patient may require nutritional support.

When appropriate:

ENTERAL NUTRITION IS GENERALLY PREFERRED.

Adequate nutrition supports tissue repair and healing. PubMed Central (PMC)

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NCLEX Practice Question 3

Which nursing intervention is appropriate for a patient with extensive SJS/TEN?

A. Aggressively rub the skin during bathing
B. Use adhesive tape extensively
C. Minimize friction and shear during care
D. Encourage scratching of affected areas

Correct Answer: C

Rationale

The epidermis is fragile and may separate easily. Nursing care should minimize friction, shear and additional trauma. PubMed Central (PMC)

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SJS/TEN vs Simple Medication Rash

This distinction is important.

Simple Drug Rash

May involve:

• Mild rash
• Pruritus
• No major skin detachment
• No significant mucosal involvement
• Patient generally stable

SJS/TEN

Think:

PAINFUL SKIN + BLISTERS + PEELING + MUCOUS MEMBRANES + SYSTEMIC ILLNESS

This is an emergency.

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SJS/TEN vs Anaphylaxis

Both may be medication-related emergencies, but the presentation differs.

Anaphylaxis

Think:

• Rapid onset
• Airway swelling
• Wheezing
• Urticaria
• Hypotension

Priority medication:

IM EPINEPHRINE

SJS/TEN

Think:

• Painful rash
• Blistering
• Epidermal detachment
• Oral/ocular/genital lesions
• Often develops after medication exposure over a longer period

Priority principles include:

STOP SUSPECTED DRUG + ABCs + SUPPORTIVE SPECIALIST CARE

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NCLEX Practice Question 4

Which patient should the nurse assess FIRST?

A. Patient with a mild itchy rash after changing laundry detergent
B. Patient with chronic psoriasis requesting moisturizer
C. Patient taking a recently started medication who has fever, painful blistering skin and oral erosions
D. Patient with stable eczema

Correct Answer: C

Rationale

This presentation is concerning for SJS/TEN, a potentially life-threatening severe cutaneous adverse reaction requiring immediate evaluation.

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What Should the Nurse Monitor?

Monitor:

• Airway
• Respiratory status
• Skin involvement
• Mucous membranes
• Eyes
• Pain
• Temperature
• Fluid balance
• Urine output
• Electrolytes
• Renal function
• Nutrition
• Signs of infection/sepsis

Patients with significant disease often require multidisciplinary management in an intensive-care or burn/specialist environment. NCBI

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Easy NCLEX Memory Trick

Remember:

SJS = STOP – SKIN – SORES

STOP

Stop the suspected offending medication.

SKIN

Painful blistering and skin detachment.

SORES

Mucosal sores involving mouth, eyes and/or genital areas.

Then add:

AIRWAY ALWAYS WINS.

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Priority Question Strategy

Imagine four patients:

Patient A: Mild localized contact dermatitis

Patient B: Chronic eczema with itching

Patient C: New medication + fever + painful skin peeling + mouth ulcers + difficulty breathing

Patient D: Stable psoriasis awaiting discharge

Who comes first?

PATIENT C

Because this patient may have:

SJS/TEN

plus

AIRWAY INVOLVEMENT

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Final NCLEX Takeaway

When you see:

RECENT MEDICATION EXPOSURE

FEVER / SYSTEMIC ILLNESS

PAINFUL RASH

BLISTERS OR SKIN PEELING

ORAL / OCULAR / GENITAL MUCOSAL LESIONS

think:

STEVENS–JOHNSON SYNDROME / TOXIC EPIDERMAL NECROLYSIS

Then remember:

STOP SUSPECTED DRUG

ASSESS ABCs

PROTECT THE SKIN

MONITOR FLUIDS

PREVENT / DETECT INFECTION

ASSESS THE EYES AND MUCOUS MEMBRANES

The easiest NCLEX memory line is:

“New drug + painful peeling skin + mouth sores = suspect SJS/TEN.”