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Body surface area. In physiology and medicine, the body surface area (BSA) is the measured or calculated surface area of a human body. For many clinical purposes, BSA is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose mass. Nevertheless, there have been several important critiques of the use ...
When chemotherapy was introduced in the 1950s, the BSA formula was adopted as the official standard for chemotherapy dosing for lack of a better option. [18] [19] The validity of this method in calculating uniform doses has been questioned because the formula only takes into account the individual's weight and height.
Cardiac index is a critical parameter in evaluating cardiac performance and the adequacy of tissue perfusion. In healthy adults, the normal range of cardiac index is generally between 2.6 to 4.2 L/min/m². Values below this range may indicate hypoperfusion and are often seen in conditions such as heart failure, hypovolemia, and cardiogenic shock.
It is disturbing that the two incompatible numbers, 3131 and 3600, appear in the literature, but it is actually academic: the choice of 3131 versus 3125 as the divisor in the formula corresponds to a 0.1% difference in the resulting BSA value, which is much too small to be of importance in anything for which BSA calculation is normally used.
In the field of pharmacokinetics, the area under the curve (AUC) is the definite integral of the concentration of a drug in blood plasma as a function of time (this can be done using liquid chromatography–mass spectrometry [1]). In practice, the drug concentration is measured at certain discrete points in time and the trapezoidal rule is used ...
14%. The Wallace rule of nines is a tool used in pre-hospital and emergency medicine to estimate the total body surface area (BSA) affected by a burn. In addition to determining burn severity, the measurement of burn surface area is important for estimating patients' fluid requirements and determining hospital admission criteria.
The left atrial volume is commonly measured by echocardiography or magnetic resonance tomography. It is calculated from biplane recordings with the equation: where A 4 c and A 2 c denote LA areas in 4- and 2-chamber views respectively, and L corresponds to the shortest long-axis length measured in either views. [1]
December 21, 2023 at 1:08 PM. The BSA Health System announced Thursday it has restored access to its patient portal, MyChart. "Beginning today, patients can use MyChart to schedule or reschedule ...