In rare cases, patients who receive the contrast material have an allergic reaction. Contrast material also causes water loss and is avoided when scanning patients who suffer from kidney failure.
In some cases, physicians request that pictures be taken both before and after the contrast material enters the patient's body. Patients who receive contrast material in the arm often report feeling a warm sensation.
The X ray dye makes it easier to see the organs and blood vessels when the pictures are developed. The intravenous contrast material is used for chest or pelvic scans, while oral-contrast material is used for abdominal scans.
In many cases, a patient must be given a contrast material before undergoing a CT scan. During "dynamic CT scanning," iodine dye is either injected into the blood or added to a drink that the patient must ingest.
In stark contrast with the accessibility of their wedding to the public, the royal newlyweds have asked the insatiable media to respect their privacy over the honeymoon.
In stark contrast with the accessibility of their wedding to the public, the royal newlyweds have asked the insatiable media to respect their privacy over the honeymoon.