Most likely this is caused by the intubation. If she were a barking breed you might notice she was hoarse for a few days. If it lasts longer than 3 days or she begins to cough or retch or seem to have difficulty breathing - she needs to be seen.
Be aware too - she might still be feeling the effects of the drugs and can for a day or two afterwards. This could potentially change her sounds temporarily. If it lasts longer than 3 days - see above.