Search results
Results From The WOW.Com Content Network
The drug is highly cardioselective at 5 mg. [19] In addition, at doses above 10 mg, nebivolol loses its cardioselectivity and blocks both β1 and β2 receptors, [18] while the recommended starting dose of nebivolol is 5 mg, sufficient control of blood pressure may require doses up to 40 mg. [18] Furthermore, nebivolol is also not ...
Many people with chronic obstructive pulmonary disease have a low partial pressure of oxygen in the blood and high partial pressure of carbon dioxide.Treatment with supplemental oxygen may improve their well-being; alternatively, in some this can lead to the adverse effect of elevating the carbon dioxide content in the blood (hypercapnia) to levels that may become toxic.
Venous oxygen saturation (SvO 2) is the percentage of oxygenated hemoglobin returning to the right side of the heart. It can be measured to see if oxygen delivery meets the tissues' demands. SvO 2 typically varies between 60% and 80%. [9] A lower value indicates that the body is in lack of oxygen, and ischemic diseases occur.
Dosage typically includes information on the number of doses, intervals between administrations, and the overall treatment period. [3] For example, a dosage might be described as "200 mg twice daily for two weeks," where 200 mg represents the individual dose, twice daily indicates the frequency, and two weeks specifies the duration of treatment.
twice daily bib. bibe: drink bis bis: twice b.i.d., b.d. bis in die: twice daily AMA style avoids use of this abbreviation (spell out "twice a day") bis ind. bis indies: twice a day bis in 7 d. bis in septem diebus: twice a week BM bowel movement: commonly used in the United Kingdom when discussing blood sugar.
The Repex (repetitive exposure) method, developed in 1988, allows oxygen toxicity dosage to be calculated using a single dose value equivalent to 1 minute of 100% oxygen at atmospheric pressure called an Oxygen Tolerance Unit (OTU), and is used to avoid toxic effects over several days of operational exposure.
The maximum benefit of oxygen availability is a balance between necessity and toxicity along a continuum. [1] Cumulative oxygen dose is determined by a combination of exposure time, ambient pressure, and the oxygen fraction of the inhaled gas. The latter two factors can be combined as the partial pressure of inhaled oxygen in the alveoli.
Fraction of inspired oxygen (F I O 2), correctly denoted with a capital I, [1] is the molar or volumetric fraction of oxygen in the inhaled gas. Medical patients experiencing difficulty breathing are provided with oxygen-enriched air, which means a higher-than-atmospheric F I O 2. Natural air includes 21% oxygen, which is equivalent to F I O 2 ...