An ammonia test measures the amount of ammonia in the blood. Most ammonia in the body forms when protein is broken down by bacteria in the intestines . The liver normally converts ammonia into urea, which is then eliminated in urine. Ammonia levels in the blood rise when the liver is not able to convert ammonia to urea. This may be caused by cirrhosis or severe hepatitis. For this test, a blood sample may be taken from either a vein or an artery.
Deduction Amount hide... The deduction is equal to the cost of the vehicle's engine, the equipment used to store or deliver the fuel, and the equipment used to exhaust combusted gases, up to a maximum of $2,000 for vehicles places in service by the end of 2005.
Deduction has limits on vehicle weight and taxpayer income. This deduction only applies to sales taxes paid on new cars and trucksânot used onesâthat weigh less than 8,500 pounds, plus motorcycles and motor homes. If you buy a vehicle for more than $49,500, you can only deduct the sales tax on that amount.or people who take the standard deduction on their 2009 returns next spring, the sales tax deduction will be added to their standard deduction. For example, the standard deduction for married couples for 2009 is $11,400.