Hertz. Hertz (abbreviated: Hz) is the standard unit of measurement used for measuring frequency. Since frequency is measured in cycles per second, one hertz equals one cycle per second. Hertz is used commonly used to measure wave frequencies, such as sound waves, light waves, and radio waves.
Novolin R should only be mixed as directed by the physician. 1  Novolin R is a short-acting insulin and is often used in combination with intermediate- or long-acting insulins. 2  The order of mixing and brand or model of syringe should be specified by the physician. A U-100 insulin syringe should always be used.
Today, most prescriptions for those using insulin cover the most up-to-date types of insulin â basal insulins such as Lantus and Levemir, as well as rapid-acting insulins like Novolog, Humalog and Apidra. Read âCan I Use Insulin Past Its Expiration Date?â When you buy insulin over the counter (OTC), these brand-name insulins are not available. ReliOn Brand of insulin at Walmart is available without prescription in some states. However, it includes very limited types of insulin. These are the older generation of insulins, including R insulin, also called Regular (a short-acting insulin and N insulin (an intermediate-acting insulin taken twice a day).