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The CPT code revisions in 2013 were part of a periodic five-year review of codes. Some psychotherapy codes changed numbers, for example 90806 changed to 90834 for individual psychotherapy of a similar duration. Add-on codes were created for the complexity of communication about procedures.
The Deep-dose equivalent (DDE) is a measure of external radiation exposure defined by US regulations. It is reported alongside eye and shallow dose equivalents on typical US dosimetry reports. It represents the dose equivalent at a tissue depth of 1 cm (1000 mg/cm2) due to external whole-body exposure to ionizing radiation. [1]
BEIR III 1980: “The Effects on Populations of Exposure to Low Levels of Ionizing Radiation” BEIR IV 1988: “Health Effects of Radon and Other Internally Deposited Alpha-Emitters” BEIR V 1990: “Health Effects of Exposure to Low Levels of Ionizing Radiation” BEIR VI 1999: “The Health Effects of Exposure to Indoor Radon”
The embryo and fetus are considered highly sensitive to radiation exposure. [8] Complications from radiation exposure include malformation of internal organs, reduction of IQ, and cancer formation. [8] The SI unit of exposure is the coulomb per kilogram (C/kg), which has largely replaced the roentgen (R). [9]
A challenge in automating the reporting of radiation exposure estimations has traditionally been a function of whether the record of dose provided by a manufacturer is persistent (i.e. stored electronically) or transient (i.e. displayed on a read-out). Many current radiology devices provide only transient records, either in the form of human ...
The ICRP further states "For internal exposure, committed effective doses are generally determined from an assessment of the intakes of radionuclides from bioassay measurements or other quantities (e.g., activity retained in the body or in daily excreta). The radiation dose is determined from the intake using recommended dose coefficients". [5]
Between dinner parties, cookie exchanges and festive cocktails, most people report eating and drinking more than usual during the holidays, gaining on average 1 to 2 pounds of body weight.
The program seeks to develop prophylactic (disease preventing) and therapeutic drugs, such as Ex-Rad, that prevent and treat radiation injuries and to develop rapid high-precision analytical methods that assess radiation exposure doses from clinical samples and thus aid in the triage and medical management of radiological casualties.