As collimation decreases (field size opens), the quantity of scatter radiation:

Match the description on the left, to the correct answer on the right.  Answers are used more than once;  only one correct answer per question.

Aperture diaphragms do not control penumbra well:

The BEST practice to lower occupational exposure from scatter radiation, when using the C-arm, is to have the x-ray tube _______.

During c-arm procedures, standing on the side of the _______ is safest because there is more scatter produced at the entrance surface of the patient.

Which of the following has the advantage of limiting off-focus (stem) radiation?

Much of the radiographic exposure (“density”) that reaches the IR, is created from _______ interactions.

Which kVp selection would result in the most scattered x-rays in the image-forming beam ?

A 42-year-old man presents to the emergency department with complaints of fever, headache, joint pains, and a dry cough for the past six days. Three days ago, he started developing dyspnea. He has a recent medical history of gastroesophageal reflux disease for which he takes famotidine. The patient lives in Ohio and has never traveled outside the country. Vitals show a temperature of 38.1°C (101°F), respirations of 22/min, a pulse of 105/min, and blood pressure of 100/60 mmHg. Physical examination reveals tender nodules on his shins, bilaterally. Pulmonary examination reveals bilateral crackles. Which of the following may be seen on a chest x-ray of this patient?

Which of the following statements best describes the genetic mutation which results in sickle cell anemia?