Lupus Flashcards
Epidemiology
At least 1.5 million Americans and
* 5 million people worldwide have a form of lupus
Gender:
* 9 in 10 people with lupus are women
* More common in ___ of
childbearing age
Age:
* Peak incidence between ages of 15-45
years old
Ethnicity:
* More prevalent in Asian, African, Arab,
Hispanic/Latins and American Indians
background
women
Exact etiology of SLE is unknown but many pre-disposing factors
Drug-induced Lupus Erythematosus (DILE)
- Overreaction to certain medications
- Symptoms occur __ - __ months of
drug initiation - Resolution occurs within ___ of drug discontinuation
- Around 10% of SLE cases are drug-
induced - There are at least 46 medications that
can cause DILE
- 3-6
- weeks
MPMMPHATIQ
- Methimazole
- Propylthiouracil
- Methyldopa
- Minocycline
- Procainamide
- Hydralazine (alone, and in BiDil)
- Anti-TNF agents (ex. Infliximab and
etanercept) - Terbinafine
- Isoniazid
- Quinidine
D) minocycline
Signs/Symptoms
- Fatigue
- Depression
- Photosensitivity
- Joint Pain
- Nausea/Vomiting
- Fever
- Weight Loss
- Malar “_______” rash
butterfly
- butterfly rash, discoid rash, raynaud phenomenon
- lupus retinopathy
- lupus nephritis
a) butterfly
c) sun exposure
Key labs
all labs positive in lupus
- ANA - not ___
- anti-dsDNA - ___ specificity, correlates with disease activity, important marker of lupus ___
- anti-SM - ___ specificity
- Antiphospholipid Antibody - Increase clotting factors
- specific
- high, nephritis
- high
- rash
- mouth ulcers
- ANA +
- anti-dsDNA +
Pharmacologic Treatments
- HCQ
- NSAIDs
- glucocorticoids
- immunosuppressants
- biologics
HCQ
MOA: Antimalarial —> Inhibit overactive immune cells
* Place in therapy: Recommended for ALL patients with SLE
* Benefits: Reduce flares and help manage pain
* Dosing: 200-400 mg PO daily
* Max: 400 mg daily
HCQ SE
Side effects:
- Ophthalmologic: Retinal Toxicity ( ____ )
- CNS: Neuropsychiatric Effects (anxiety,
depression, insomnia, suicidal ideation,
etc)
- CV: QT prolongation, cardiomyopathy
- Neuromuscular: Myopathy
- Dermatologic: Hypersensitivity reaction
- Other: Hypoglycemia, Hemolytic anemia
( ____ )
- bullseye mucopathy
- G6PD
G6PD Deficiency
- ___ disorder that causes RBCs to prematurely break down
X-linked
HCQ - monitoring
Baseline:
* CBC
* LFTs
* SCr
* EKG
Periodic:
* ___ exam
* 3 months after starting therapy,
then annually
- eye