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.
Some meals at Taco Bell aren't low in fat. The Fiesta Taco Salad is 770 calories and has 75 carbohydrates. The Nachos BellGrande has the same amount of calories and 3 more carbs. The Crunch Wrap Supreme is 540 calories and 71 carbs, and the Fresco version is 460 calories and 67 carbs.