As you perform a portable chest radiograph,the optimal SID of 40 inches is unattainable because of orthopedic supports over the patient.It is necessary for you to shorten the SID to 34 inches.A professional radiographer should do which of the following?

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SIDs are generally,standardized so that the degree of penumbra is at least a known factor.Department procedures or protocols will dictate proper SIDs for various examinations.The most common SID is 40 inches,but some procedures such as chest radiography use a 72-inch SID.Exceptions to these standards exist,but the SID of an examination should always be indicated to the radiologist as a nonroutine SID.

As You Perform a Portable Chest Radiograph,the Optimal SID of 40