What undesirable effect does collimation reduce?
What will be an ideal response?
Scatter (secondary) radiation that has been deflected from its path by impact during its passage through matter. Scatter radiation is the source of two deleterious effects: increased radiation dose to the patient by not restricting the size of the beam, and poor contrast on the resulting image. Collimation reduces both of these negative effects.
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For the head injury patient without signs of herniation, adjust ventilation rates to maintain a capnography reading of between:
A) 15 and 20 mmHg. B) 25 and 30 mmHg. C) 45 and 50 mmHg. D) 35 and 40 mmHg.
As you and your partner are carrying a stable patient down a flight of stairs in a stair chair, you feel a sudden, sharp pain in your lower back. You should:
A. stop the move and request additional lifting assistance. B. stop the move and have the patient walk down the stairs. C. guide your partner while moving the chair backwards. D. reposition your hands and continue to move the patient.