The nurse is participating in the discharge planning for these patients. Which is an example of appropriate patient teaching?

1. A patient with discoid lupus erythematosus should monitor their urinary output daily.
2. A patient with gastric reflux should be told to elevate their head of bed while sleeping.
3. A patient with osteoarthritis should be told to exercise their joints when they are painful.
4. A patient with hypocalcemia should take calcitonin daily to increase their calcium levels.