Basic pulmonary function tests available in the ambulatory setting include spirometry and pulse oximetry; these tests provide physiologic measures of pulmonary function and can be used to quickly narrow a differential diagnosis and suggest a subsequent strategy of additional testing or therapy.
There are 257 calories in 1 Soft Taco with Beef, Cheese and Lettuce. Calorie breakdown: 41% fat, 37% carbs, 21% protein.
The Fresco Crunchy Taco substitutes a hearty, veggie salsa for the cheddar cheese of a normal hard taco. The result is a taco with only 150 calories, according to Taco Bell. This is just 7.5 percent of your daily recommended caloric intake, according to MayoClinic.com.