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Cryoprecipitate, also called cryo for short, or Cryoprecipitate Antihemophilic factor (AHF), is a frozen blood product prepared from blood plasma. [1] To create cryoprecipitate, Plasma is slowly thawed to 1–6 °C. A cold-insoluble precipitate is formed, which is collected by centrifugation, resuspended in a small amount of residual plasma ...
The term cryosupernatant (also called cryo-poor plasma, cryoprecipitate depleted, cryoprecipitate reduced plasma) refers to plasma from which the cryoprecipitate has been removed. It is used to treat thrombocytopenic purpura .
Fresh frozen plasma is made up of a complex mixture of water, proteins, carbohydrates, fats, and vitamins. [1] When frozen it lasts about a year. [1] Plasma first came into medical use during the Second World War. [1] It is on the World Health Organization's List of Essential Medicines. [7] In the United Kingdom it costs about £30 per unit. [8]
The Catalina treatment table is a modification of Treatment Table 6. Oxygen cycles are 20 minutes, and air breaks 5 minutes. The full Catalina Table allows for up to 5 extensions at 60 fsw. [18] Shorter versions include: 3 oxygen cycles at 60 fsw followed by a minimum of 6 oxygen cycles at 30 fsw. (equivalent to USN Table 6)
In pharmacokinetics, the rate of infusion (or dosing rate) refers not just to the rate at which a drug is administered, but the desired rate at which a drug should be administered to achieve a steady state of a fixed dose which has been demonstrated to be therapeutically effective. Abbreviations include K in, [1] K 0, [2] or R 0.
Repeated administration of a medication is also different from single dosing, as many drugs have active metabolites that can build up in the body. [6] Patient variables such as sex, age, and organ function may also influence the effect of the drug on the system. These variables are rarely included in equianalgesic charts. [7] [3] [8]
The body detects the lower hemoglobin level, and compensatory mechanisms start up. The heart pumps more blood with each beat. Since the lost blood was replaced with a suitable fluid, the now diluted blood flows more easily, even in the small vessels. As a result of chemical changes, more oxygen is released to the tissues.
The rate of dissolution is a key target for controlling the duration of a drug's effect, and as such, several dosage forms that contain the same active ingredient may be available, differing only in the rate of dissolution. If a drug is supplied in a form that is not readily dissolved, it may be released gradually and act for longer.