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.
Suppose we eat one ounce of celery filled with one ounce of peanut butter. That makes 2 ounces of food containing a total of 171.2 calories (4.5 + 166.7). Divide by 2 and we have a snack with 85.6 calories per ounce.The calorie density is way too high and will contribute to weight gain.Maybe we love peanut butter and we just have to have some with our celery.n ounce of celery contains 4.5 calories and an ounce of peanut butter has 166.7 calories. The calorie density of celery is 4.5 and the calorie density of peanut butter is 166.7.