Although ketones are omnipresent in the blood (< 1 mg/dL), levels increase during periods of fasting and prolonged exercise.The nitroprusside test only detects acetoacetate in blood and urine; however, it does not assess beta-hydroxybutyrate, the most accurate indicator of ketone body levels.
The Chase Sapphire Reserveâ  is a hybrid between a rewards card and a premium credit card. For a hefty annual fee of $450, cardholders get access to some of the best rewards rates of any credit card, the highest credit card welcome bonus, and a slew of ancinilary travel benefits. The Chase Sapphire Reserveâ  gives a 4.5% rewards rate on travel and dining out, and 1.5% on everything else.
For more information on our variable annuities and optional benefits, see the product prospectus for complete details. The currently available Highest Daily Lifetime Income benefit listed above is referred to as Highest Daily Lifetime Income v3.0 in the prospectus. A variable annuity is a long-term investment designed for retirement purposes.