Pulmonary function tests are used when: 1  Screening for the presence of obstructive and/or restrictive lung diseases. 2  Determining the patient's condition prior to surgery in order to assess the risk of respiratory complications after surgery.  Evaluating the ability of a patient to be weaned off a ventilator.
Health benefits. One stalk of celery contains only about 10 calories, while a cup of chopped celery contains about 16. It also contains dietary fiber (1.6 grams per cup), which helps curb cravings because it absorbs water in the digestive tract, making you feel fuller longer.
Not only does peanut butter make a great snack, but when combined with celery, it can become a powerful ally in your weight loss journey. One serving of a large stalk of celery and 2 tablespoons of peanut butter provides roughly 200 calories. You can cut the serving in half and eat one for your morning snack and one for your afternoon snack.