An AC system has many components: compressor, condenser, receiver dryer, evaporator, and hoses. The compressor, the âheartâ of the carâs air conditioning system works like a pump taking refrigerant, (R-12 in older cars, R-134a in 1995 and newer cars) and pressurizing it, passing it along to the evaporator. The AC compressor has several moving parts (including pistons and valves).
They vary throughout the day. (Click here for a blood sugar chart.) For someone without diabetes, a fasting blood sugar on awakening should be under 100 mg/dl. Before-meal normal sugars are 70â99 mg/dl. âPostprandialâ sugars taken two hours after meals should be less than 140 mg/dl. Those are the normal numbers for someone without diabetes.
Avoid Blood Pressure Spikers. 1  Caffeine â Hold off on the morning cup of coffee before measuring your blood pressure. No caffeine for half an hour before measuring is best. 2  Tobacco â If you can stop altogether, your heart will thank you. Otherwise, avoid for at least half an hour before you take a measurement. Exercise â Great to do, just wait until after you check your blood pressure. Avoid exercise for thirty minutes prior to blood pressure readings. Medication â For an accurate reading, you should have as little medication in your blood as possible. Food â Wait to eat until after you check your blood pressure. Alcohol â Avoid alcohol consumption for at least half an hour before checking your blood pressure.