Radiology and Anatomy Quiz

Radiation Physics

• Filtration decreases the average energy of the primary beam
• Energy of ionizing electromagnetic radiations is measured in keV (kilo-electronvolts)

Anatomy

• The right colic flexure is formed by the junction of the transverse and ascending colon
• The proximal tibiofibular articulation is best demonstrated in the AP position
• The olecranon process is a proximal structure on the adult ulna
• The normal adult axillary temperature is lower than rectal temperature

Radiography

• Filtration increases the intensity of the primary beam
• A double contrast of the hepatic and splenic flexures is best demonstrated in the right lateral decubitus position
• An x-ray image with many shades of gray from white to black is described as having long-scale contrast
• The period of relaxation of the heart is termed diastole

Patient Care

• An ambulatory patient is one who is able to walk
• A patient lacking decision-making capacity can have their rights exercised by a designated surrogate or proxy
• A radiographer who discloses confidential information to unauthorized individuals may be found liable for breach of confidentiality

Imaging Procedures

• Preparation for an upper GI series typically involves clear fluids 8 hours prior to examination
• The usual position for demonstrating the pulmonary apices below the level of the clavicles in the AP position requires the CR to be directed 15 to 20° cephalad
• The lateral oblique position is not typically used for both single-contrast and double-contrast examinations of the large bowel

Medical Conditions

• Blunting of the costophrenic angles on a PA projection of the chest can be an indication of pleural effusion
• Paralytic ileus demonstrates least x-ray penetrability