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.
Calorie counts for Taco Bell tacos range from 170 per taco to 340 for the Double Decker Taco Supreme. The Taco Bell Crunchy Taco Supreme is a fan favorite that provides 190 calories and 11 grams of fat (shown). While that doesn't sound like a lot, most people eat two, three or even more of these crunchy snacks.