Lupus is Systemic Lupus Erythematosus, it is a disease considered to be auto-immune so the body's own defense system is active.
Anti-cardiolipin antibodies are also part of this auto-immune disease, the body is fighting against cardiolipin, a molecule found in cell walls.
Remicade is a new treatment that fights the auto-immune disease. Because it works to help suppress the immune response then there are a number of potential side effects but the benefit of treating the disease usually outweighs the side effects.
Not everyone that uses Remicade will get all the side effects, and she will have lots of follow up at clinics so any new problems can be dealt with quickly.
The important thing with her history is nutrition, she may have poor absorption leading to vitamin deficiencies and reduced calorie uptake. So regular blood tests for hemoglobin, folate and vitamin B12 are important. She may want to see a nutritionist to check that her calorie intake is matching her needs.
Studies have shown that moderate exercise has a role in managing fatigue, and so a physical therapist can work with her to have an exercise regimen that she can flex depending on how much she can manage.
Little and often is better than heavy duty sessions. Even a gentle walk will help if she cannot face the gym.